The electricity conduct to earth from the base of tower and copper cable.
雷电流通过塔架和铜缆经基础接地传到大地中。
Lead, iron, copper, tin, and zinc are base metals.
铅、铁、铜、锡和锌都是基本金属。
Pure Copper base material ensures excellent heat dissipation.
纯铜基底确保散热效果。
Pure Copper base material ensures excellent heat dissipation.
纯铜基底确保散热效果。
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