电缆壳之间，以使其保持相同电位，通常为大地电位。
Cable sheaths, made in order to keep them at the same potential, usually that of the earth.
导电构件间的一种低阻电连接，如机箱和金属电缆壳之间，以使其保持相同电位，通常为大地电位。
A low resistance electrical connection between conducting structures such as racks and metal cable sheaths, made in order to keep them at the same potential, usually that of the earth.
电气设备的接地部分与大地零电位点之间存在对地电压。
There is voltage to ground between ground part of electric equipment and point of zero electric potential of earth.
电气设备的接地部分与大地零电位点之间存在对地电压。
There is voltage to ground between ground part of electric equipment and point of zero electric potential of earth.
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