In this paper, the excellences of the double pass technique and the applications in fiber amplifiers are introduced.
本文介绍了双程放大技术的优点及在各种放大器中的应用。
The application situation of double pass pulverized coal burners in 300 MW boilers in Hunan Shimen Power Plant and Xiangtan B Power Plant are introduced in detail.
详细介绍了双通道煤粉燃烧器在湖南石门电厂、湘潭电厂B 厂300MW 机组锅炉上的应用情况。
Condensers, for matching steam turbines in power plants, are mostly of the double pass type, with cooling water either entering at top and leaving at bottom or vice versa.
电站汽轮机配备的凝汽器大多采用双流程，冷却水的流径有上进下出和下进上出之分。
Has analyzed the dynamic characteristic of single - pass and double - pass vibrating screen.
对单、双通道振动筛进行了动态特性分析。
The result shows that the dynamic characteristic of double - pass vibrating screen is superior to the single - pass vibrating screen. Proposes the theoretical basis for the design of lar…
分析结果表明双通道振动筛的动态特性明显优于单通道振动筛，为筛分机械的大型化设计提供了理论依据。
The upper limit of the gain is determined by the threshold of the SBS of the system. The maximum gain can be raised in the case of double-pass pumping.
增益的提升上限取决于系统受激布里渊散射的阈值，在双程泵浦下增益的上限可得到提高。
The upper limit of the gain is determined by the threshold of the SBS of the system. The maximum gain can be raised in the case of double-pass pumping.
增益的提升上限取决于系统受激布里渊散射的阈值，在双程泵浦下增益的上限可得到提高。
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