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软铜 [ruǎn tóng]
soft copper
- 典型的金属垫圈用铅或软铜制作。
A typical metallic washer is made from lead or softened copper. - 抵制诱惑，删除所有的黑点很难擦洗或伸缩软铜。
Resist the temptation to remove all of the black spots by hard scrubbing or by flexing the soft copper. - 软铜绞线外层的绞向为右向，除非供需双方另有协议。
The outside layer of the flexible copper strand conductors shall be twisted in the clockwise direction, unless otherwise specified.
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