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。
Now and then, at our entrance, someonetried to escape from back door or window and ran, of course, into the clutch ofpolicemen.
偶尔,我们在正门一出现,有人会企图通过后门或窗口逃跑,当然,都落入了警察的手里。
The sudden entrance of the icy air through the broken window changed the particles of water into snow.
窗户被打破以后,冷风突然涌进大厅,湿热的空气中的水汽于是就凝成了雪花。
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