A rainbow arced gracefully over the town.彩虹在小城上空画出了一道优美的弧线。Tracer rounds arced through the air and stitched over the Banshees.追踪子弹弧线形穿过空间钉在女妖战机上.Squirrels added staccato crunch notes with their arced leaps.松鼠蹦蹦跳跳增加了嘎吱嘎吱的...
这些结果可用于螺旋线返波管或行波管的设计.These results may be useful in designing helices - BWT or TWT.接着讨论了大尺寸慢波结构返波管的模式竞争问题,介绍了几种常见的模式选择手段.Then we introduced some kinds of mode selection devices , especially the resonant cavity.分析结果表明:采用该...