Bringing together priceless material, from oracle bone script provided by the National library of China to early Latin American photography, it is the world's 3rd major digital library.
在这一世界第3个大型数字图书馆中，人们还可欣赏到中国国家图书馆提供的甲骨文、拉丁美洲老照片等珍贵资料。
The backlight photography with single sample was used to measure the true stress-strain of the ductile material after necking in tensile test.
本文采用单试样逆光拍照法对延性材料拉伸试验缩颈后的真实应力-应变进行了有效的测量。
Electronic Lamps can provide lighting with characteristics matching the basic requirements of short-distance photography of material evidence.
电子闪光灯具有适合于物证近距摄影的基本要求的光线特点。
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