This article introduces briefly the Physical and chemical properties of plastics used for the glasses frame and lens, also including the material, character and producing method of hidden glasses.
本文简介了眼镜镜架和镜片所用塑料的物理、化学性能及特性，并对隐形眼镜的材质、特性及制造方法等也进行了介绍。
The camera, with a wide Angle lens, was found hidden in a suitcase on top of a cupboard after the woman realised bedroom furniture had been moved.
摄像头具有广视角镜头，被藏于柜橱上的一个手提箱里，直到房子女主人意识到卧室家具被移动后才被发现。
The camera, with a wide Angle lens, was found hidden in a suitcase on top of a cupboard after the woman realised bedroom furniture had been moved.
摄像头具有广视角镜头，被藏于柜橱上的一个手提箱里，直到房子女主人意识到卧室家具被移动后才被发现。
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