This paper presents a method of measuring the particle mean size and dust concentration by small angle near forward light scattering optics and the extinction theory.
本文综合前向小角光散理论及消光原理，提出一种测量粉尘平均粒径及粉尘浓度的光学方法。
One theory is that they were hunted to extinction by humans.
一种理论是，它们是由于人类的猎杀而灭绝的。
The theory is the brainchild of Professor Bill Napier, from Cardiff University, who says it explains the mysterious period of extinction around 11, 000 BC.
这个理论是卡迪夫大学（Cardiff University）教授比尔·内皮尔（Bill Napier）提出的，他说这个理论解释了大约公元前1.1万年时神秘的物种灭绝时期。
‘Error catastrophe’ ‘or extinction mutagenesis’ is a theory about mutations and survival of populations.
“错误突变”，“或阻止突变”是一个关于种群的突变和生存的理论。
'Error catastrophe' 'or extinction mutagenesis' is a theory about mutations and survival of populations.
“错误突变”，“或阻止突变”是一个关于种群的突变和生存的理论。
Liang Qichao pursued Using ideology. He publicized the idea of survival competition by the Evolution Theory. And he wanted to save the nation from extinction.
梁启超奉行经世致用的思想，他用进化论宣传生存竞争的道理，希望借此达到救亡图存的目的。
The consistence of theory and experiment results has proven the decision that sensor stability is directly affected by the two extinction ratios of PBS.
理论及实验结果的吻合证明了光学电流传感器稳定性直接受偏振分束器两路消光比影响的结论。
On the basis of the theory, the methods and ways how control the bloom and extinction of cyanobacteria are posed.
基于这个理论，提出如何控制水华蓝藻生消的方法和途径。
If this conclusion is confirmed, then the earlier theory that the meteorite led to the extinction of dinosaurs may be negative.
如果这一结论获得证实，那么此前有关陨石导致恐龙灭绝的理论可能就会被否定。
It can be approved by the theory and experiment that the extinction ratio of the parallel beam splitter is better than 10 ~ (-3), and the shear difference is improved too.
理论分析和实验测试表明，该棱镜消光比优于10 -3，且可以实现大的横向剪切。
From the view of combination theory and practice, the thesis probes deep into the essentials of establishment, ways of exercising, effect and extinction of right of plea for preference claim.
从理论与实践相结合的角度，对先诉抗辩权的成立要件、行使方式与效果、先诉抗辩权的消灭等问题进行探讨，在此基础上，对我国现行立法存在的不足进行了剖析，并提出了完善相关立法的具体建议。
From the view of combination theory and practice, the thesis probes deep into the essentials of establishment, ways of exercising, effect and extinction of right of plea for preference claim.
从理论与实践相结合的角度，对先诉抗辩权的成立要件、行使方式与效果、先诉抗辩权的消灭等问题进行探讨，在此基础上，对我国现行立法存在的不足进行了剖析，并提出了完善相关立法的具体建议。
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