As the two charge distributions separate, leaving positive and negative sheaths.当两种电荷分布开始时, 就留下正离子鞘和负离子鞘.In addition, various precision spiales and metallic sheaths can be made.同时, 可承接各种精密轴、套类零件的加工制造.The signal character...
As the two charge distributions separate, leaving positive and negative sheaths.当两种电荷分布开始时, 就留下正离子鞘和负离子鞘.The production of sheaths has led to some new and unexpected difficulties.制造被筒时引起一些新的未预料到的困难.In addition, various p...
Wallets may have gotten thinner during this recession, but waistlines have expanded.在这次经济衰退中,人们的钱包可能瘪了, 但腰围却鼓起来了.They were knocked to the ground and robbed of their wallets...他们被打倒在地并被抢走了钱包。They were knocked to the groun...