单词directional signal
网络: 方向信号臂；转向信号灯；汽车方向指示灯
Incorporated in the directional signal switch is a "lane change switch mechanism" .
合并在转向开关中的是一个“变换开关机构”。
a radio station that broadcasts a directional signal for navigational purposes.
为了航海目的广播方向信号的广播站。