能量的最大有效输入是在波腹.The most efficient input of energy is actually at an antinode.因此, 维纳能够推断出:变黑的区域是同E场的波腹相联系的.Accordingly, Wiener could conclude that the blackened regions were associated with antinodes of the E - field.在弦振动“...
The ball rebounded from the backboard.球从篮板上弹回来.Galvanized by the authority in her voice, Pork approached the wagon and fumbled at the backboard.波克听了思嘉这种命令的口气, 怎敢怠慢.于是他走到马车边,在马车后厢摸索着.The ball hit the backboard and bounced...
The beach was crowded with bathers.海滩上挤满了游泳嬉戏的人们。The beach is swarming with bathers.海滩满是海水浴的人.Cloudy sky drove the bathers off the beach.阴霾的天空把海滩上的游客都赶跑了.Bathers would go straight from the hot room to take a cold plunge....