The solute concentration and solvent concentration had no direct effect on the flux. The main effect on the flux is the character of solvent.
溶质浓度和溶剂浓度对通量没有直接影响，起决定作用的还是溶剂本身。
However, because Dimilin had no direct effect on the population of aphis, this stability of insect community was easily disturbed by the rapid increase of aphis population.
由于药剂对蚜虫种群无影响，群落的稳定性易因蚜虫种群的迅速增殖而遭到破坏。
Microinjection of methlysergide(MS), an antagonist of 5-HT receptor, into the hippocampus, had no direct effect on sleep, but abolished the SWS-promoting effect of 5-HTP completely.
非特异性5-HT受体阻断剂麦角新碱（MS）对睡眠无直接影响，但可完全阻断5-HTP的促睡眠效应。
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