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Safety Chain

保险链；安全链，（油罐车）接地链；安全链备用电路

1、[矿业] [铁路]安全链

...Safety chain）接在手链卡扣的两端，如果手链的卡扣松开了，珠子（charms）不会马上从手链上滑下来。有了安全链（Safety chain），给手链上锁的时候会比较容易。

2、保险链

... safety certificate 安全证书 safety chain 安全链；接地链；保险链 safety checker 安全检测器 ...

3、安全链备用电路

... 备用电路断路器 up circuit breaker 安全链备用电路 safety chain 备用电路,备用回路 spare circuit ...

4、接地链

... safety certificate 安全证书 safety chain 安全链；接地链；保险链 safety chuck 钻杆座 ...

safety y chain保险链;安全链

Safety trust chain安全信任链

safety pin chain安全销吊链

safety value chain安全价值链

safety coupling chain安全联接链

rotary hose safety chain水龙头保险链;水龙带保险键

hopper door safety chain底门安全链

truck safety chain转向架安全链

经济学

地球科学

交通运输工程

1.
N（名词） a chain on the fastening of a bracelet, watch, etc, to ensure that it cannot open enough to fall off accidentally (手链、手表等防止突然开口掉落的)安全链条 (Also called guard)

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