打个比方，通过电子取景器，在拍摄前，你可以看到按下快门后的出片效果(白平衡，曝光，对焦等等)。
For example, you can see exactly what effect your Settings will have before you take the shot (white balance, exposure, focus, and so on).
叙述了国内外改善焦炭质量的措施及采用措施后对焦炭质量的改善效果。
In this paper, The measures of coke quality improvements and their effects are described.
自由基清除剂正丁醇对焦化废水中氨氮、凯氏氮和有机氮的超声降解效果影响并不显著。
OH radical scavenger has little affection on the degradation effect of the nitrogen of the carbonization effluent.
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