英语词汇“approach obstruction signal”的读音、翻译、释义、用法及例句-开邑网

词汇	approach obstruction signal
释义	approach obstruction signalapproach obstruction signal1.■遮断预告信号机
随便看	host specificity host subarea host subscriber host support host susceptibility host system host-to-host protocol host transfer file host-versus-graft reaction host versus graft reaction host virtual storage H-O system hot hot acetic acid treatment hot acid hot acid polymerization process hot acid system hot acid treatment hot adhesive hot aggregate bin hot-aggregate conveyer hot aggregate elevator hot aggregate storage bin hot aggregate vibrating screen hot air

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