spring-steel shutter
常見例句
- In this shutter, the mechanism of switch on-off light beam is a pair of steel plates which are controled by two electromagnets that overcome the force of spring fixed on the shutter.
在這種快門中，開關(guān)光路的機搆是一對由電磁鉄控制的，以彈簧爲(wèi)動力的薄鋼片。 返回 spring-steel shutter