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.
维生素A是构成视觉细胞中感受弱光的视紫红质的组成成分，视紫红质是由视蛋白和11-顺-视黄醛组成，与暗视觉有关。
Vitamin A is to create visual cells in order to feel weak light of the composition of rhodopsin, rhodopsin from opsin and 11 - cis - retinal composition, with the dark vision related.
低温弱光导致了叶片和根系中CAT活性的显著降低。
The activities of CAT, a cold-sensitive enzyme, were decreased rapidly in both leaves and roots after chilling.
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