信号弹的英文：
signal rocket

• They will fire off a signal flare.
  他们将发射一发信号弹。
• The distressed ship sent up a flare.
  遇难的轮船发射了一枚信号弹。
• As soon as you get to the assembly point send up a red flare.
  你们一到达集合地点马上发射一颗红色的信号弹。
• Guns were blazing, flares going up and the sky was lit up all around.
  炮火不断，信号弹此起彼伏，四周的天空都被照亮了。

• register signal
  记录器信号
• A servo potentiometer that generates the signal for comparison with the input signal
  一种产生信号以便与输入信号进行比较的伺服电位计。
• position command signal
  位置指令信号
• He read a flag signal.
  他了解旗信号。
• The submarine signaled for help.
  潜水艇发出求救的信号。

• The rocket boosts the astronaut into space.
  这火箭能把太空旅行者送入太空。
• The rockets flared a warning.
  火箭发出闪光警告。
• The secondary planet is send by rocket.
  这颗卫星是由火箭发射的。
• The second rocket has divorced itself from the first spent rocket
  第二级火箭已经脱离已燃尽的第一级火箭。
• Propellant is another term for the fuel of a rocket.
  推进剂是火箭燃料的另一术语。