spare cable

基本解释

The spare cable or control cable that is normally not loaded with current shall be placed at the center in case of multi-layer laying.
多层敷设时，平时不载流的备用电缆或控制电缆应放置在中心部位。
The fixed pulley is rotated by a cranking bar to wind the steel cable, a spare tire can be lifted, and the spare tire can be put down stably by rotating in reversal the cranking bar.
使用摇把转动定滑轮圈绕钢丝索，即可提升备胎，反转摇把即可平稳降下备胎。
ip.com
"In the worst case, the carrier cable may fail and the spare tire could become separated from the vehicle, a road hazard for following vehicles that increases the likelihood of a crash, " it said.
“最坏的情况是，载波电缆可能会失效，备用轮胎就有可能从车上脱落，给后续车辆造成危险，从而增加了发生车祸的可能性。”报告中说。
treasure.1x1y.com.cn

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