frictional effect造句

例句与造句

1. Thus far we have negated frictional effects in the harmonic oscillator .
   到现在为止，我们一直没有考虑谐和振荡器中的摩擦效应。
2. It is found that some of the oil droplets are electrically charged, presumably because of frictional effects .
   发现有些小油滴可能由于摩擦作用而带了电。
3. It's difficult to find frictional effect in a sentence. 用frictional effect造句挺难的