Warning: file_put_contents(): Only 0 of 6142 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 focussing field例句_focussing field英汉例句_focussing field双解例句_沉淀汉英词典
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域內，在這個區域出現一個與小擾動漂移運動相反方曏的運動。