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联锁盒; 炮栓闭锁机 | |||
螺栓保险 | |||
连锁盒; 螺栓保险 (器); 栓锁 | |||
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闭锁铁; 卡铁 |
bolt-lock: 34 phrases in 12 subjects |
Automobiles | 1 |
Aviation | 3 |
Bridge construction | 1 |
Communications | 1 |
Compressors | 1 |
Electric machinery | 1 |
General | 1 |
Mechanic engineering | 1 |
Oil / petroleum | 1 |
Space | 1 |
Technology | 19 |
Wind Energy | 3 |