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safety brake | |||
emergency brake; emergency bulkhead (门); emergency lock (门); escape gate (门); escape lock (门); guard gate (门); safe gate (门); safety gate (门) | |||
emergency lock |
安 全 闸 : 13 phrases in 5 subjects |
Architecture | 1 |
Ecology | 1 |
Hydroelectric power stations | 4 |
Oil / petroleum | 1 |
Technology | 6 |