The end cover switch is loosened, a circuit is cut off, and the electric flash device stops flashing.

旋松端盖开关，电路断开，电闪光装置停止发光。

youdao

The end cover switch is loosened, a circuit is cut off, and the electric flash device stops flashing.

旋松端盖开关，电路断开，电闪光装置停止发光。

youdao