A fresh egg will sink and an old egg will float.新鲜鸡蛋会沉下去而不新鲜的会浮在上面。Empty things float.空的物体会在水中浮起。Strange thoughts float through my mind when I am nearly asleep.我快睡着时产生一种奇怪的念头....
Practice indicates that dumper has become a important dumping equipment.生产实践表明,此机巳成为重要的卸矿设备.The reasons causing burn - up of heavy - duty dumper motor are analyzed.目前应用的双驱动重型卸料车,经常发生烧毁电机的故障.I think being the dumper is wo...