door screen
The physical stop which corresponds to the entrance window is then the required field stop.
入射窗所对应的实物光阑就是所要求的场光阑。
—— 辞典例句After crossing Huzhou, already was the night lan time.
过湖州后, 已是夜阑时候。
—— 给力词典精选These apertures restrict the amount of light that can reach the detector.
这些光阑将会限制到达探测器的光线的总量。
—— 给力词典精选Late at night we still grasp candles.
更阑更秉烛,相对如梦寐。
—— 给力词典精选It is very impolite for you to enter the leaders´office without permission.
这里是领导办公的地方,你擅自阑入,实在是太没礼貌了!
—— 给力词典精选