While Houston did not take the brunt of the storm the way Galveston did, Ike did knock out the city's water pumping systems, and that was sufficient to threaten the whole health-care system.

虽然休斯敦并未像加尔维斯顿那样受到风暴的正面袭击，但“埃克”仍旧摧毁了该市的抽水系统，其破坏程度足以对整个卫生保健系统造成威胁。

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This study develops the switching power for the public bus voltage of the pumping frequency group control system and carries out a large number of experiments.

本文研究并设计了适用于抽油机变频群控系统这种特殊场合的开关电源，进行了大量实验并设计出样机。

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At last, the measures and methods which increase the system efficiency of pumping Wells are pointed out.

最后，指出提高抽油机系统效率的措施和方法。

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At last, the measures and methods which increase the system efficiency of pumping Wells are pointed out.

最后，指出提高抽油机系统效率的措施和方法。

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