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.Note as well that the above considerations apply when all the apertures are illuminated completely coherently.还要注意,当所有的孔都以完全相干的...
"Forgive my manners," she said calmly. "I neglected to introduce myself."“请原谅我礼数不周，”她平静地说。“我忘了自我介绍了。”Everyone must think this situation through calmly and coolly.每个人都必须冷静沉着地仔细考虑这一情况。The gunmen calmly walked away and esca...
China's strained railroads already become a bottleneck for the economy.中国紧张的铁路运输已经成为经济增长的瓶颈.A severe snowstorm blocked up railroads.一场暴风雪使铁路中断.Water transportation was outmoded by railroads and good pikes.水上运输已因铁路和良...