Ground line to top of indicator should be at least 36 " . "

地平线到指示器顶部应该至少为36 英寸.

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This tool is quite approximate to the traditional method the antivibratingweight problems of ground line.

其工具简便、效率高,是高压输电线路的必需工具,预期很有发展前景.

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Note that the signal ground line should also be connected in the system.

当然,系统的信号接地线也应该连接.

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