对二维晶体的矩阵表示、对称性及其对X射线衍射的系统消光规律进行了研究，得到并证明了二维晶体的矩阵表示的二个定理和二维晶体对X射线衍射的系统消光定理。
The crystallographic problems of two-dimensional crystal, such as the matrix expression, the symmetry and the systematic absence law of the crystal's X-ray diffraction, are studied.
第三章对此磁致偏振特性测量系统的搭建及工作原理（消光法）、影响测量结果的因素及解决方法、实验操作步骤等作了说明。
So the third chapter focuses on the measuring system. The operating principle (Light extinction method), the factors which influence the result and the resolvent to avoid them are explained.
该通信系统还受背景光、雪崩光电二极管（APD）增益和调制消光比等因素的影响。
The results also show that the performance of this communication system can be affected by background optical, APD gain and modulation extinction ratio.
介绍了多波长消光法测尘的测量原理。分析了计算机辅助粉尘检测系统和工作原理。
A multi-wave-length extinction detection method for dust is put forward. Then the principle and a principal designing scheme are given.
该系统得到了很好的性能，具有很高的消光比。
Whole system is immersed in an oil tank. Such a system has good performance, especially high extinction coefficient.
论文利用消光比原理中系统所要达到的消光比值公式，借鉴消光比测试的分析方法，推导出了无靶板检测技术的原理公式。
On the formula of extinction-ratio value, this paper deduced the theoretic equation of the extinction-ratio test method without target.
消光系统在光脉动法颗粒粒径测量技术中是一个十分重要的物理量，但现有的消光系数处理方法有许多不完善的地方。
Extinction coefficient is a very important parameter in the field of particle sizing technology using optical fluctuation method. But the existing method dealing with it is not perfect.
公司另外还评论道，他们相信尽管欧洲的光伏补贴政策力度会逐步消弱，但是全球的光伏系统组件依然会有20%—25%的年增长。
The company has additionally said it believes sales of PV panels will increase 20-25 percent annually, despite European feed-in tariffs declining.
有色方解石晶体偏光器件的消光比可达10 - 6量级，能满足一般光学测试系统的使用要求。
The extinction ratio of colored calcite crystal polarizer can reach 10-6. It can be used in optical measurement systems which doesn't need extreme high precision.
有色方解石晶体偏光器件的消光比可达10 - 6量级，能满足一般光学测试系统的使用要求。
The extinction ratio of colored calcite crystal polarizer can reach 10-6. It can be used in optical measurement systems which doesn't need extreme high precision.
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