sheathing cables
护套电缆
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In this form, nearly half of the world's output of lead is consumed by the electrical industry, either for use as a protective sheathing for cables, or as the cathode plates of storage batteries.
全世界铅产量差不多一半都是制成铅锑合金用于电气工业，不是用做电缆的护套，就是用作蓄电池的极板。
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