常見例句雙語例句Some particles are focussing on the neutral region, which is caused by the drift under the action of an electric field along the neutral line.小擾動方法不能使用於中性線的區(qū)域內(nèi)，在這個(gè)區(qū)域出現(xiàn)一個(gè)與小擾動漂移運(yùn)動相反方曏的運(yùn)動。 返回 focussing field