rubber insulated cables of rated voltages up to and including 450/ 750v-part 5: lift cables
GB5013.5-1997额定电压450/750V及以下橡皮绝缘电缆第5部分:电梯电缆
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乙丙绝缘铜丝编织铁装聚氯乙烯外套对称式阻燃船用通信电缆,SA型
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乙丙绝缘铜丝编织铁装聚氯乙烯外套对称式船用通信电缆,DA型
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The wires must be insulated from touching each other, with a rubber covering.
这些金属线一定要用橡胶皮包起来,以免相互接触.
《简明英汉词典》