发信号

• A tall , slender structure used for observation , signaling , or pumping
  塔状物高耸纤细的建筑物，用于观察、发信号或泵压
• The light signals back ： “ change yours ， 10 degrees to the west
  那道光发信号回来： “还是改变你的航线吧，向西移10度。 ”
• They ' re transmitting
  他们开始发信号了
• This signal must be correct , clear and given in plenty of time
  发信号在安全情况下发出信号。必须尽早发出正确及清楚的信号。
• You ' re in charge . anyone gets within 40 ciicks of the perimeter , signai me
  这里由你接管了有人接近这附近40米的话给我发信号
• Brit ) system of signalling by hand signs used by bookmakers at racetracks
  （英国）堵住登记经纪人在跑道上用手势发信号的系统。
• An event is a message sent by an object to signal the occurrence of an action
  事件是对象发送的消息，以发信号通知操作的发生。
• Some car engines are very quiet and not all drivers use signals
  有些汽车引擎声量很低，并且不是所有驾驶人都会发信号警告行人。
• Was it a signal
  是在发信号吗？
• Send them a sign
  给他们发信号