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edwa。
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3、stratified random sampling───分层任意抽样,分层随机抽样,分层随机取土样
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5、forementioned site───前场
6、vocality credit union───声乐信用合作社
7、first school education───第一学校教育
8、legendary edition───传奇版
9、smuggled define───ZouSi定义
10、forenamed define───预先定义
1、Er3 + -doped optical waveguide amplifier (EDWA) become the hotspot of study because of its advantage like small volume, high gain etc.───掺铒光波导放大器以其体积小、增益高等优点而成为研究的热点。
2、Moreover, in order to improve the EDWA performance, the parameters are optimized such as pump power and waveguide length.───并且为了全面发挥掺铒玻璃波导放大器的性能,需要抽运功率、波导长度等各个参量配合起来。
3、size of EDWA is also discussed here, which has some reference value for the following study and the design of waveguide amplifier.───还讨论了截面尺寸的影响,对以后的研究工作和波导放大器的设计具有一定的参考意义。
4、Erbium-doped planar optical waveguide amplifiers have potential application in the area of civil aviation communications.───掺铒光波导放大器 (E D W A)在民航机场通信领域具有广阔的应用前景。
1、In order to reduce the noise figure of EDWA, a tapered waveguide structure is brought forward.