短語詞組短語smoke distress signal 煙霧呼救信號smoke signal bomb 煙幕信號彈buoyant smoke signal 可浮煙火信號;[水運(yùn)]漂浮煙霧信號orange smoke signal 橙色煙霧信號transmittance of smoke signal 煙霧信號透過率Orange smoke signal for lifebuoys 救生圈用橙色煙霧信號self -activating orange smoke signal 自燃橙色煙霧信號lifebuoy self -activating smoke signal [安全][水運(yùn)]救生圈自發(fā)煙霧信號 返回 smoke signal