A signal or method using a flag waved side to side

• A message sent by such flag waving

用左右摆动旗帜进行通信的信号或方法

• 由此旗语发送的信息

To signal a message by waving a flag side to side

通过左右挥旗发出信号

To move back and forth in a gentle, wagging motion

• To alternate between two states

以轻缓的来回摆动移动

• 在两种状态之间交替

A device that alternates a component between two states

• A controller that makes vehicle lamps flash alternately
• A red light outside a sound stage showing filming is in progress
• A cab warning that drops when truck air pressure is too low
• A polishing instrument that creates a wigwagging motion

使部件在两种状态之间交替的装置

• 使车辆灯具交替闪烁的控制器
• 片场门口表示正在拍摄的红灯
• 卡车气压过低时下落的驾驶室警示装置
• 产生往复摆动的抛光仪器

A grade-crossing signal with swinging or alternating lights to warn of a train

用摇摆或交替闪灯警示列车接近的道口信号

With a to-and-fro, wagging motion

以来回摆动的方式