本文阐述并分析了轻烃泵用双端面机械密封的特点，提出了改进方法和设计依据。
This paper describes and analyses the reasons of the failure of dual-encl-face mechanical seal for hydrocarbon pump and proposes a reformation and design method.
用氮激光泵浦单一染料盒盛装的若丹明6G获得同时调谐双波长运转。
This paper presents an experimental device for simultaneously tunable operation at two wavelengths, using a single rhodamine 6G cell pumped by a nitrogen laser.
用氮激光泵浦单一染料盒盛装的若丹明6G获得同时调谐双波长运转。
This paper presents an experimental device for simultaneously tunable operation at two wavelengths, using a single rhodamine 6G cell pumped by a nitrogen laser.
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