片语
Orange smoke signal for lifebuoys救生圈用橙色烟雾信号
self-activating smoke signal自动发烟信号
smoke distress signal烟雾呼救信号
lifebuoy self-activating smoke signal[安全]
smoke signal bomb烟幕信号弹
transmittance of smoke signal烟雾信号透过率
self-activating orange smoke signal自燃橙色烟雾信号
buoyant smoke signal[水运] 漂浮烟雾信号
orange smoke signal橙色烟雾信号