在许多应用场合,波动的直流电是讨厌的.In many applications a fluctuating DC current is undesirable.他是个情绪波动的演员(演得好坏由心情而定).He's avery temperamental player, ie plays well or badly accordingto his mood.他们波动的回声中带有一种难言的悲哀.In their echoes, t...
The flatting mechanism of low luster paint of organic solvent was introduced.介绍了有机溶剂型哑光涂料的消光机理.Sitting on chair, both hands flatting on thigh naturally.坐在椅子上, 两手自然平放在大腿上.Now the Factory possesses various large - scale fl...