shutter efficiency的意思|示意
快门光学有效系数；快门效率
shutter efficiency相关短语
1、 fan efficiency shutter 扇风机节风闸门
2、 efficiency of the shutter contact 闪光接触效率
3、 fan efficiency shutter control 风扇进风门调节器
4、 transmit efficiency of shutter 快门透光率
5、 fan efficiency shutter adjustment lever 风扇进风门调节杆
6、 efficiency of a shutter 快门效率