灰色三星智能手机显示巧克力Gray Samsung Smartphone Showing Chocolates-Blur,Camera,cell phone,cellphone,cellular,chocolate,device,display,Electronics,food,food photography,Hands,mobile,mobile phone,multimedia,phone,Photo,photograph,Photography,picture,portable,raspberries,samsung,screen,Smartphone,taking picture,Technology,telephone,touch,wireless,三星,便携式,图片,多媒体,屏幕,巧克力,手,手机,技术,拍照,摄影,无线,显示,智能手机,模糊,照片,电子产品,电话,相机,蜂窝,覆盆子,触摸,设备,食品,食品摄影-海量高质量免版权图片素材-设计师素材-摄影图片-sitapix-西田图像

灰色三星智能手机显示巧克力Gray Samsung Smartphone Showing Chocolates

BY SITAPIX
2019-03-22
图片EXIF信息

设备MODEL: NIKON D5500

拍摄参数EXIF: 35.0 mm f/1.8 ISO 320

拍摄信息PHOTOGRAPHED:

图片大小LENS: 9.6 MB

图片比例ASPECT:

原始像素SIZE: 5872 x 3915 pixels

其他信息

图片名称NAME: 灰色三星智能手机显示巧克力Gray Samsung Smartphone Showing Chocolates

上传时间UPLOADED: 2019-03-22

处理软件SOFTWARE: Software: Adobe Photoshop CC (Windows)

版权说明LICENSE: 免费商业用途或个人用途/CC0 1.0通用

图片热度: 397 Views

下载图片/DOWNLOAD

点击下载

查看同色系图片/COLOR

你可能想找：

, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

相似图片推荐/RELATED

使用黑色蓝宝石三星Galaxy S6 Edge采取自拍照的人Person Taking Selfie Using Black Sapphire Samsung Galaxy S6 Edge|Business,cellphone,cellular telephone,closeup,device,display,electronic,Hand,holding,indoors,Modern,person,portable,Portrait,screen,Smartphone,Technology,telephone,touch,wireless,业务,人,便携式,在室内,屏幕,手,手机,技术,控股,无线,显示,智能手机,特写,现代,电子,电话,移动电话,肖像,触摸,设备-海量高质量免版权图片素材-设计师素材-摄影图片-sitapix-西田图像
持有白色Android智能手机的人Person Holding White Android Smartphone|Business,cellphone,cellular telephone,closeup,device,display,electronic,Hand,holding,indoors,Modern,person,portable,Portrait,screen,Smartphone,Technology,telephone,touch,wireless,业务,人,便携式,在室内,屏幕,手,手机,技术,控股,无线,显示,智能手机,特写,现代,电子,电话,移动电话,肖像,触摸,设备cellphone,cellular telephone,closeup,communication,Connection,Contemporary,device,digital,display,Electronics,Hands,holding,iPhone,Man,mobile,mobile phone,Modern,person,phone,portable,screen,Smartphone,Technology,touch,touch screen,wireless,人,便携式,屏幕,当代,手,手机,技术,控股,数字,无线,显示,智能手机,特写,现代,电子,电话,男人,移动,移动电话,触摸,触摸屏,设备,连接,通信-海量高质量免版权图片素材-设计师素材-摄影图片-sitapix-西田图像
白色糖衣和巧克力蛋糕Cakes With White Icing and Chocolates|Business,cellphone,cellular telephone,closeup,device,display,electronic,Hand,holding,indoors,Modern,person,portable,Portrait,screen,Smartphone,Technology,telephone,touch,wireless,业务,人,便携式,在室内,屏幕,手,手机,技术,控股,无线,显示,智能手机,特写,现代,电子,电话,移动电话,肖像,触摸,设备cellphone,cellular telephone,closeup,communication,Connection,Contemporary,device,digital,display,Electronics,Hands,holding,iPhone,Man,mobile,mobile phone,Modern,person,phone,portable,screen,Smartphone,Technology,touch,touch screen,wireless,人,便携式,屏幕,当代,手,手机,技术,控股,数字,无线,显示,智能手机,特写,现代,电子,电话,男人,移动,移动电话,触摸,触摸屏,设备,连接,通信bake,baked,baking,berry,cake,candy,chocolate,coffee break,cream,creamy,delicious,dessert,eat,egg,flour,Flowers,food,fork,fruit,homemade,ice cream,indulgence,meal,nutritious,pastry,plates,raspberries,red,spring,still life,strawberry,sugar,Sweet,tasty,two,vanilla,White,两个,冰淇淋放纵,叉子,吃,咖啡休息,奶油,巧克力,春天,板,水果,浆果,烘烤,烤,甜,甜点,白,糕点,糖,糖果,红色,美味,自制,草莓,营养丰富,蛋糕,覆盆子,静物,面粉,食品,餐,香草,鲜花,鸡蛋-海量高质量免版权图片素材-设计师素材-摄影图片-sitapix-西田图像
选择聚焦摄影托盘的巧克力Selective Focus Photography Of Tray Of Chocolates|Business,cellphone,cellular telephone,closeup,device,display,electronic,Hand,holding,indoors,Modern,person,portable,Portrait,screen,Smartphone,Technology,telephone,touch,wireless,业务,人,便携式,在室内,屏幕,手,手机,技术,控股,无线,显示,智能手机,特写,现代,电子,电话,移动电话,肖像,触摸,设备cellphone,cellular telephone,closeup,communication,Connection,Contemporary,device,digital,display,Electronics,Hands,holding,iPhone,Man,mobile,mobile phone,Modern,person,phone,portable,screen,Smartphone,Technology,touch,touch screen,wireless,人,便携式,屏幕,当代,手,手机,技术,控股,数字,无线,显示,智能手机,特写,现代,电子,电话,男人,移动,移动电话,触摸,触摸屏,设备,连接,通信bake,baked,baking,berry,cake,candy,chocolate,coffee break,cream,creamy,delicious,dessert,eat,egg,flour,Flowers,food,fork,fruit,homemade,ice cream,indulgence,meal,nutritious,pastry,plates,raspberries,red,spring,still life,strawberry,sugar,Sweet,tasty,two,vanilla,White,两个,冰淇淋放纵,叉子,吃,咖啡休息,奶油,巧克力,春天,板,水果,浆果,烘烤,烤,甜,甜点,白,糕点,糖,糖果,红色,美味,自制,草莓,营养丰富,蛋糕,覆盆子,静物,面粉,食品,餐,香草,鲜花,鸡蛋巧克力,放纵,甜点,糕点,糖果,美味的,食物,饼干-海量高质量免版权图片素材-设计师素材-摄影图片-sitapix-西田图像
拿着黑色Android智能手机的人Person Holding Black Android Smartphone|Business,cellphone,cellular telephone,closeup,device,display,electronic,Hand,holding,indoors,Modern,person,portable,Portrait,screen,Smartphone,Technology,telephone,touch,wireless,业务,人,便携式,在室内,屏幕,手,手机,技术,控股,无线,显示,智能手机,特写,现代,电子,电话,移动电话,肖像,触摸,设备cellphone,cellular telephone,closeup,communication,Connection,Contemporary,device,digital,display,Electronics,Hands,holding,iPhone,Man,mobile,mobile phone,Modern,person,phone,portable,screen,Smartphone,Technology,touch,touch screen,wireless,人,便携式,屏幕,当代,手,手机,技术,控股,数字,无线,显示,智能手机,特写,现代,电子,电话,男人,移动,移动电话,触摸,触摸屏,设备,连接,通信bake,baked,baking,berry,cake,candy,chocolate,coffee break,cream,creamy,delicious,dessert,eat,egg,flour,Flowers,food,fork,fruit,homemade,ice cream,indulgence,meal,nutritious,pastry,plates,raspberries,red,spring,still life,strawberry,sugar,Sweet,tasty,two,vanilla,White,两个,冰淇淋放纵,叉子,吃,咖啡休息,奶油,巧克力,春天,板,水果,浆果,烘烤,烤,甜,甜点,白,糕点,糖,糖果,红色,美味,自制,草莓,营养丰富,蛋糕,覆盆子,静物,面粉,食品,餐,香草,鲜花,鸡蛋巧克力,放纵,甜点,糕点,糖果,美味的,食物,饼干blurred background,cell phone,cellphone,cellular telephone,closeup,Contemporary,day,Daylight,device,digital device,electronic,fingers,Focus,Hand,holding,human,iPhone,mobile,mobile phone,Modern,outdoors,person,phone,portable,Smartphone,Technology,touchscreen,wireless,举行,人,人类,便携,天,当代,户外,手,手指,手机,技术,数字设备,无线,智能手机,模糊背景,焦点,特写镜头,现代,电子,白天,移动电话,触摸屏,设备-海量高质量免版权图片素材-设计师素材-摄影图片-sitapix-西田图像
持有白色智能手机车内的人Person Holding White Smartphone Inside Vehicle|Business,cellphone,cellular telephone,closeup,device,display,electronic,Hand,holding,indoors,Modern,person,portable,Portrait,screen,Smartphone,Technology,telephone,touch,wireless,业务,人,便携式,在室内,屏幕,手,手机,技术,控股,无线,显示,智能手机,特写,现代,电子,电话,移动电话,肖像,触摸,设备cellphone,cellular telephone,closeup,communication,Connection,Contemporary,device,digital,display,Electronics,Hands,holding,iPhone,Man,mobile,mobile phone,Modern,person,phone,portable,screen,Smartphone,Technology,touch,touch screen,wireless,人,便携式,屏幕,当代,手,手机,技术,控股,数字,无线,显示,智能手机,特写,现代,电子,电话,男人,移动,移动电话,触摸,触摸屏,设备,连接,通信bake,baked,baking,berry,cake,candy,chocolate,coffee break,cream,creamy,delicious,dessert,eat,egg,flour,Flowers,food,fork,fruit,homemade,ice cream,indulgence,meal,nutritious,pastry,plates,raspberries,red,spring,still life,strawberry,sugar,Sweet,tasty,two,vanilla,White,两个,冰淇淋放纵,叉子,吃,咖啡休息,奶油,巧克力,春天,板,水果,浆果,烘烤,烤,甜,甜点,白,糕点,糖,糖果,红色,美味,自制,草莓,营养丰富,蛋糕,覆盆子,静物,面粉,食品,餐,香草,鲜花,鸡蛋巧克力,放纵,甜点,糕点,糖果,美味的,食物,饼干blurred background,cell phone,cellphone,cellular telephone,closeup,Contemporary,day,Daylight,device,digital device,electronic,fingers,Focus,Hand,holding,human,iPhone,mobile,mobile phone,Modern,outdoors,person,phone,portable,Smartphone,Technology,touchscreen,wireless,举行,人,人类,便携,天,当代,户外,手,手指,手机,技术,数字设备,无线,智能手机,模糊背景,焦点,特写镜头,现代,电子,白天,移动电话,触摸屏,设备adult,Blur,bokeh,Car,communication,Connection,contact,detail,display,distracted,electronic,Electronics,mobile phone,outdoors,screen,Smartphone,Technology,texting while driving,touch,transportation system,Travel,Vehicle,分心,屏幕,开车时发短信,成人,户外,手机,技术,散景,旅游,显示,智能手机,模糊,汽车,电子,电子产品,联系人,触摸,详细,运输系统,连接,通信-海量高质量免版权图片素材-设计师素材-摄影图片-sitapix-西田图像
疯狂的黑色Lg智能手机Turned-on Black Lg Smartphone|Business,cellphone,cellular telephone,closeup,device,display,electronic,Hand,holding,indoors,Modern,person,portable,Portrait,screen,Smartphone,Technology,telephone,touch,wireless,业务,人,便携式,在室内,屏幕,手,手机,技术,控股,无线,显示,智能手机,特写,现代,电子,电话,移动电话,肖像,触摸,设备cellphone,cellular telephone,closeup,communication,Connection,Contemporary,device,digital,display,Electronics,Hands,holding,iPhone,Man,mobile,mobile phone,Modern,person,phone,portable,screen,Smartphone,Technology,touch,touch screen,wireless,人,便携式,屏幕,当代,手,手机,技术,控股,数字,无线,显示,智能手机,特写,现代,电子,电话,男人,移动,移动电话,触摸,触摸屏,设备,连接,通信bake,baked,baking,berry,cake,candy,chocolate,coffee break,cream,creamy,delicious,dessert,eat,egg,flour,Flowers,food,fork,fruit,homemade,ice cream,indulgence,meal,nutritious,pastry,plates,raspberries,red,spring,still life,strawberry,sugar,Sweet,tasty,two,vanilla,White,两个,冰淇淋放纵,叉子,吃,咖啡休息,奶油,巧克力,春天,板,水果,浆果,烘烤,烤,甜,甜点,白,糕点,糖,糖果,红色,美味,自制,草莓,营养丰富,蛋糕,覆盆子,静物,面粉,食品,餐,香草,鲜花,鸡蛋巧克力,放纵,甜点,糕点,糖果,美味的,食物,饼干blurred background,cell phone,cellphone,cellular telephone,closeup,Contemporary,day,Daylight,device,digital device,electronic,fingers,Focus,Hand,holding,human,iPhone,mobile,mobile phone,Modern,outdoors,person,phone,portable,Smartphone,Technology,touchscreen,wireless,举行,人,人类,便携,天,当代,户外,手,手指,手机,技术,数字设备,无线,智能手机,模糊背景,焦点,特写镜头,现代,电子,白天,移动电话,触摸屏,设备adult,Blur,bokeh,Car,communication,Connection,contact,detail,display,distracted,electronic,Electronics,mobile phone,outdoors,screen,Smartphone,Technology,texting while driving,touch,transportation system,Travel,Vehicle,分心,屏幕,开车时发短信,成人,户外,手机,技术,散景,旅游,显示,智能手机,模糊,汽车,电子,电子产品,联系人,触摸,详细,运输系统,连接,通信iPhone,互联网,人,可移植的,屏幕,当代,手,手机,技术,持有,数字,数码设备,无线,显示,智能手机,模糊,模糊的背景,特写镜头,现代,电子产品,电话,移动,移动电话,触屏,触摸屏,设备-海量高质量免版权图片素材-设计师素材-摄影图片-sitapix-西田图像
拿着Iphone的人显示照相机Person Holding Iphone Showing Camera|Business,cellphone,cellular telephone,closeup,device,display,electronic,Hand,holding,indoors,Modern,person,portable,Portrait,screen,Smartphone,Technology,telephone,touch,wireless,业务,人,便携式,在室内,屏幕,手,手机,技术,控股,无线,显示,智能手机,特写,现代,电子,电话,移动电话,肖像,触摸,设备cellphone,cellular telephone,closeup,communication,Connection,Contemporary,device,digital,display,Electronics,Hands,holding,iPhone,Man,mobile,mobile phone,Modern,person,phone,portable,screen,Smartphone,Technology,touch,touch screen,wireless,人,便携式,屏幕,当代,手,手机,技术,控股,数字,无线,显示,智能手机,特写,现代,电子,电话,男人,移动,移动电话,触摸,触摸屏,设备,连接,通信bake,baked,baking,berry,cake,candy,chocolate,coffee break,cream,creamy,delicious,dessert,eat,egg,flour,Flowers,food,fork,fruit,homemade,ice cream,indulgence,meal,nutritious,pastry,plates,raspberries,red,spring,still life,strawberry,sugar,Sweet,tasty,two,vanilla,White,两个,冰淇淋放纵,叉子,吃,咖啡休息,奶油,巧克力,春天,板,水果,浆果,烘烤,烤,甜,甜点,白,糕点,糖,糖果,红色,美味,自制,草莓,营养丰富,蛋糕,覆盆子,静物,面粉,食品,餐,香草,鲜花,鸡蛋巧克力,放纵,甜点,糕点,糖果,美味的,食物,饼干blurred background,cell phone,cellphone,cellular telephone,closeup,Contemporary,day,Daylight,device,digital device,electronic,fingers,Focus,Hand,holding,human,iPhone,mobile,mobile phone,Modern,outdoors,person,phone,portable,Smartphone,Technology,touchscreen,wireless,举行,人,人类,便携,天,当代,户外,手,手指,手机,技术,数字设备,无线,智能手机,模糊背景,焦点,特写镜头,现代,电子,白天,移动电话,触摸屏,设备adult,Blur,bokeh,Car,communication,Connection,contact,detail,display,distracted,electronic,Electronics,mobile phone,outdoors,screen,Smartphone,Technology,texting while driving,touch,transportation system,Travel,Vehicle,分心,屏幕,开车时发短信,成人,户外,手机,技术,散景,旅游,显示,智能手机,模糊,汽车,电子,电子产品,联系人,触摸,详细,运输系统,连接,通信iPhone,互联网,人,可移植的,屏幕,当代,手,手机,技术,持有,数字,数码设备,无线,显示,智能手机,模糊,模糊的背景,特写镜头,现代,电子产品,电话,移动,移动电话,触屏,触摸屏,设备Blur,cellphone,cellular telephone,closeup,dark,Design,device,Electronics,futuristic,Hand,holding,human,indoor,mobile,pattern,person,taking photo,Technology,举行,人,室内,手,手机,技术,拍照片,未来派,机动性,样式,特写镜头,电子,移动电话,设备,设计,迷离,黑暗-海量高质量免版权图片素材-设计师素材-摄影图片-sitapix-西田图像

海量动漫/真人壁纸推荐/SITAPIX

原始字符,粉红色的头发,动漫,动漫女孩,异形植物,微笑,尼亚,裁剪,艺术品,泰德大道,壁纸/手机壁纸|动漫,动漫女孩,原始字符,尼亚,异形植物,微笑,泰德大道,粉红色的头发,艺术品,裁剪-海量免费高质量壁纸|墙纸|手机壁纸|电脑壁纸|wallpaper|动漫|卡通|二次元|真人|风景壁纸库-西田壁纸
红死救赎2,红死救赎,Rockstar游戏,亚瑟摩根,壁纸/手机壁纸|Rockstar游戏,亚瑟摩根,红死救赎,红死救赎2-海量免费高质量壁纸|墙纸|手机壁纸|电脑壁纸|wallpaper|动漫|卡通|二次元|真人|风景壁纸库-西田壁纸
亚洲,妇女,模型,看着观众,浅黑肤色的男人,户外,格子花呢裙,裙子,城市,壁纸/手机壁纸|亚洲,城市,妇女,户外,格子花呢裙,模型,浅黑肤色的男人,看着观众,裙子-海量免费高质量壁纸|墙纸|手机壁纸|电脑壁纸|wallpaper|动漫|卡通|二次元|真人|风景壁纸库-西田壁纸
猛击扣篮,漫画,日本卡通,壁纸/手机壁纸|日本卡通,漫画,猛击扣篮-海量免费高质量壁纸|墙纸|手机壁纸|电脑壁纸|wallpaper|动漫|卡通|二次元|真人|风景壁纸库-西田壁纸
布鲁内特,马尾辫,铁皮菊,Cana Alberona,童话尾巴,动漫,动漫女孩,运动服,蓝色上衣,绑腿,健身房,景深,2D,艺术品,绘画,粉丝艺术,厚屁股,壁纸/手机壁纸|2d,Cana Alberona,健身房,动漫,动漫女孩,厚屁股,布鲁内特,景深,童话尾巴,粉丝艺术,绑腿,绘画,艺术品,蓝色上衣,运动服,铁皮菊,马尾辫-海量免费高质量壁纸|墙纸|手机壁纸|电脑壁纸|wallpaper|动漫|卡通|二次元|真人|风景壁纸库-西田壁纸
Cosplay,精灵,女性,游戏海报,裸体,壁纸/手机壁纸|cosplay,女性,游戏海报,精灵,裸体-海量免费高质量壁纸|墙纸|手机壁纸|电脑壁纸|wallpaper|动漫|卡通|二次元|真人|风景壁纸库-西田壁纸
吸血鬼,张开的嘴巴,心（纹身）,微笑,看着观众,长发,刘海,蝙蝠翅膀,粉红色衬衫,深色头发,脸红,手表,方,发装饰,简单的背景,2d ,动漫女孩,褶边,散步,刺穿,红色背景,粉丝艺术,艺术品,壁纸/手机壁纸|2d,刘海,刺穿,动漫女孩,发装饰,吸血鬼,张开的嘴巴,微笑,心（纹身）,手表,散步,方,深色头发,看着观众,简单的背景,粉丝艺术,粉红色衬衫,红色背景,脸红,艺术品,蝙蝠翅膀,褶边,长发-海量免费高质量壁纸|墙纸|手机壁纸|电脑壁纸|wallpaper|动漫|卡通|二次元|真人|风景壁纸库-西田壁纸
乳沟,举起连衣裙,裸露肩膀,哈库89,动漫女孩,咖啡馆斯特拉到Shinigami no Chou,Shiki Natsume（咖啡馆Stella）,白色丝袜,微笑,连衣裙,壁纸/手机壁纸|Shiki Natsume（咖啡馆Stella）,举起连衣裙,乳沟,动漫女孩,咖啡馆斯特拉到Shinigami no Chou,哈库89,微笑,白色丝袜,裸露肩膀,连衣裙-海量免费高质量壁纸|墙纸|手机壁纸|电脑壁纸|wallpaper|动漫|卡通|二次元|真人|风景壁纸库-西田壁纸

免费样机素材推荐/MOCKUP

金属盒子铝制盒子咖啡茶叶食品盒长盒扁盒|包装,咖啡,盒子,茶叶,金属盒-高质量免费样机素材/Mockup模板/PSD贴图素材
农产品系列农产品零食坚果|包装,咖啡,盒子,茶叶,金属盒农产品,坚果,果干,果汁,瓶子,罐子,袋装-高质量免费样机素材/Mockup模板/PSD贴图素材
环保纸袋手提袋牛皮纸袋袋子服装袋子|包装,咖啡,盒子,茶叶,金属盒农产品,坚果,果干,果汁,瓶子,罐子,袋装手提袋,服装,牛皮,环保纸袋,纸袋,袋子-高质量免费样机素材/Mockup模板/PSD贴图素材
披萨包装盒扁盒盒子食品|包装,咖啡,盒子,茶叶,金属盒农产品,坚果,果干,果汁,瓶子,罐子,袋装手提袋,服装,牛皮,环保纸袋,纸袋,袋子包装,扁盒,披萨,盒,盒子,食品-高质量免费样机素材/Mockup模板/PSD贴图素材
鸡蛋鸭蛋鹅蛋蛋类包装透明盒子套装|包装,咖啡,盒子,茶叶,金属盒农产品,坚果,果干,果汁,瓶子,罐子,袋装手提袋,服装,牛皮,环保纸袋,纸袋,袋子包装,扁盒,披萨,盒,盒子,食品包装,塑料,套装,盒子,蛋类,透明,鸡蛋,鸭蛋,鹅蛋-高质量免费样机素材/Mockup模板/PSD贴图素材
啤酒饮料果汁碳酸包装啤酒易拉罐饮料瓶|包装,咖啡,盒子,茶叶,金属盒农产品,坚果,果干,果汁,瓶子,罐子,袋装手提袋,服装,牛皮,环保纸袋,纸袋,袋子包装,扁盒,披萨,盒,盒子,食品包装,塑料,套装,盒子,蛋类,透明,鸡蛋,鸭蛋,鹅蛋包装,啤酒,啤酒瓶,易拉罐,果汁,碳酸饮料,饮料,饮料瓶-高质量免费样机素材/Mockup模板/PSD贴图素材
化妆品系列套装洗面奶护肤品发胶发蜡香薰香水美妆|包装,咖啡,盒子,茶叶,金属盒农产品,坚果,果干,果汁,瓶子,罐子,袋装手提袋,服装,牛皮,环保纸袋,纸袋,袋子包装,扁盒,披萨,盒,盒子,食品包装,塑料,套装,盒子,蛋类,透明,鸡蛋,鸭蛋,鹅蛋包装,啤酒,啤酒瓶,易拉罐,果汁,碳酸饮料,饮料,饮料瓶化妆品,发胶,发蜡,套装,护肤品,洗手液,洗面奶,香水,香薰-高质量免费样机素材/Mockup模板/PSD贴图素材
药品保健品药瓶保健品瓶玻璃瓶塑料瓶|包装,咖啡,盒子,茶叶,金属盒农产品,坚果,果干,果汁,瓶子,罐子,袋装手提袋,服装,牛皮,环保纸袋,纸袋,袋子包装,扁盒,披萨,盒,盒子,食品包装,塑料,套装,盒子,蛋类,透明,鸡蛋,鸭蛋,鹅蛋包装,啤酒,啤酒瓶,易拉罐,果汁,碳酸饮料,饮料,饮料瓶化妆品,发胶,发蜡,套装,护肤品,洗手液,洗面奶,香水,香薰保健品,保健品瓶,塑料瓶,玻璃瓶,药品,药瓶-高质量免费样机素材/Mockup模板/PSD贴图素材