例句與造句

1. Thus far we have negated frictional effects in the harmonic oscillator .
   到現(xiàn)在為止，我們一直沒(méi)有考慮諧和振蕩器中的摩擦效應(yīng)。
2. It is found that some of the oil droplets are electrically charged, presumably because of frictional effects .
   發(fā)現(xiàn)有些小油滴可能由于摩擦作用而帶了電。
3. It's difficult to find frictional effect in a sentence. 用frictional effect造句挺難的