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- photo refractive materials 光折变材料
- Photorefractive polymers have better photo refractive effect,and polymer intermingling Azo compound and PMMA have nonlinear optical(NLO) and stability. 光折变聚合物具有良好的光折变效应,采用以惰性聚合物PMMA为基体,掺杂偶氮化合物染料的光折变聚合物具有较好的光学非线性和稳定性。
- A brief introduction to domestic research of negative refracting materials is given,and two possible routes t... 本文还简要介绍了国内负折射材料的研究现状,提出了利用高分子功能材料实现负折射的两种可能的途径。
- A brief introduction to domestic research of negative refracting materials is given, and two possible routes to negative refracting via functional polymeric materials are suggested. 本文还简要介绍了国内负折射材料的研究现状，提出了利用高分子功能材料实现负折射的两种可能的途径。
- Keep the sun behind you when you take a photo. 拍照时要让太阳留在你的身后。
- He showed me a photo of a family group. 他给我看一张合家欢的照片。
- Many a time have we come across this same photo. 我们多次都见到过这同一张照片。
- A brief introduction to domestic research of negative refracting materials is given, and two possible routes to negative refracting via functional polymeric materials are suggeted. 本文还简要介绍了国内负折射材料的研究现状，提出了利用高分子功能材料实现负折射的两种可能的途径。
- He adjusted the shutter before taking a photo. 在照相前，他调整了快门。
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- The woman on the photo is my paternal grandmother. 照片上的这个妇人是我祖母。
- He took a lot of photo last sunday, and so do I. 他上星期照了许多照片，我也一样。
- The photo made him quite attractive. 照片把他拍得相当英俊。
- That photo is a good likeness of David. 戴维那张相片照得很像。
- The beautiful curtain is made of remnant materials. 这个漂亮的窗帘是用零头布做的。
- He hit upon a photo taken ten years ago. 他偶然发现一张十年前拍的照片。
- Some synthetic materials do not crush easily. 有些化纤衣料不易起皱。
- The photo shows her dressed in black. 在这张照片里，她穿著黑衣服。
- I got her in focus before I took the photo. 我在拍摄前先用镜头把她对清楚。
- The photo has faded beyond recognition. 相片已经模糊，不能辨认。
