火箭信号弹: signal rocket集束信号弹: cluster flare两色信号弹: double-star signal目标信号弹: target projectile声响信号弹: sound signal shell水声信号弹: marine acoustic signal bomb信号弹药筒: cartridges signal星式信号弹: star flare烟火信号弹: signal rocket降落伞信号弹: parachute signal信号弹床代码: signal-trampoline code信号弹发射器: signal-flare container; signal-flare launcher燃烧着的信号弹: ball时间信号弹发射炮: time gun手动打火信号弹: hand fired signal对空联络发光信号弹: air pyrotechnic发射绿色信号弹一枚: to fire a single green flare昼夜两用求救信号弹: day-night flare信号: signal; semaphore; gun 音频[响] 信号 an audible signal; 臂板信号 [铁道] semaphore; 灯光信号 light signal; 识别信号 identification signal; 遇难信号 [航海学] distress signal; sos; 杂乱信号 [无线电] hash; 火车切不可越过危险信号。 a train must not pass a signal that is at danger. 信号是用旗或灯发出的。 signals are made with flags or lamps.; 信号弹 [工业] signal flare; 信号灯 signal lamp [light]; alarm lamp; light; signallight; winker; call lamp; blinker; telltale lamp; 信号发生器 signal generator; generator; producer; 信号枪 signal gun; signal piping; flare gun; flare pistol; pyrotechnic pistol; ground signal projector信号,发信号: signal信号板信号: panel signaling信号的信号: signals signal信号符号,信号: signal信号, 发信号, 用信号通知: signal信号单元指示符: signal unit indicator信号单元校准: signal unit alignment