在匀强电场中, 电力线是平行的直线, 其间隔是均匀的.In an uniform field, the lines of force are straight parallel, and uniformly spaced.它本身是绝缘体,其导热能力优于铜,并能承受极高的强电场.It is insulator but its thermal conductivity is better than Cu.研究压电弯曲执行器在强电场作用下的非...
Dorothy, come on. Never mind your shoes. They'll soon dry off.快点儿吧，多萝西。别去管你的鞋子了，它们很快就会干的。I'm speaking from outside the Dorothy Chandler Pavilion, in Los Angeles.我正在洛杉矶,DorothyChandlerPavilion的外面为您解说.Dorothy...
听众要求歌唱者再演唱一次.The audience encored the singer.钢琴家替歌唱者伴奏.The pianist accompanied the singer.合唱队演唱得很不和谐(歌唱者不听从指挥).The choir gave a ragged performance , ie The singers were not following the conductor....