pilot tube

• n. 指示灯

pilot tube的用法和样例：

例句

用作名词 (n.)

1. The pilot lamp stopped to represent the termination of the operation.
   指示灯停止显示操作终止。
2. An on-off switch with pilot light, reversing switch and a power rheostat are mounted on the base.
   开关还附有指示灯，转换装置及电阻在底座上。