The high volumetric efficiency of pump and therefore has been maintained.

泵的高容积效率也因此得到了维护.

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The efficiency of pump is the important parameter which indicates how we operate and manage equipment.

泵效的高低是反应抽油设备利用效率和管理水平的重要指标.

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Finally the efficiency of pump power absorption of double cladding structure fiber is studied particularly.

最后研究了双包层结构中泵浦光吸收效率问题.

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