NEX-5在一个主要方面的表现甚至比昂贵的单反更为出色：由于它在弱光环境中优秀的成像质量，Sony的工程师决定不设内置闪光灯。
The NEX-5 even trumps an expensive SLR in one key respect: It is so adept at low-light shooting that Sony’s engineers decided to design the camera without a built-in flash.
电晕在电晕放电中在高压电极出现的一种微弱光辉，常伴随有朝向低压电极的电流。
A faint glow enveloping the high-field electrode in a corona discharge, often accompanied by streamers directed toward the low-field electrode.
在V型能级系统原子介质中，若利用外场产生相干，则弱光场在该介质中的吸收-色散关系将展现出新的特性。
A new feature will be exhibited in the absorption-dispersion relation if quantum coherence is induced by an external field in the medium consisting of atoms of V-type energy-level configuration.
应用推荐