明朝有位著名的史志学家叫潘之恒，在黄山住了几十年，写了一部60卷的大部头书——黄山山志，书名就叫《黄海》。
Ming Dynasty famous Chronicles scientist called Pan's constant, and lived for decades in Huangshan, wrote a 60-volume tome - Huangshan Mountain Books, the title is called "Yellow Sea".
分析了铝箔轧制恒张力控制，对箔卷轧制生产控制和轧机设备维护有实际的意义。
Analyze aluminum foil mill coiler constant tension control, supporting to have got the actual meaning with the rolling mill maintenance the production control.
以倒轴机为例，介绍了采用通用变频器来实现线缆收放卷恒张力控制的方法。
By taking beaming machine as an example, this paper describes the methods that realize the constant tension control of pay-off and take-up reel of wire and cable by using general inverter.
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