给出了一种新型的 单相 航空静止变流器,分析了其工作原理和特性.A novel two - stage structure of single - phase aeronautical static inverter ( ASI ) is present.摘要介绍了单相电压型三电平四象限变流器工作原理.The working principle of the single - phase voltage - source 4 - qua...
Guests bopped and jigged the night away to the disco beat.客人们整个晚上随着迪斯科的节奏跳博普舞和吉格舞。A disco isn't exactly a den of iniquity.迪斯科舞厅并非藏污纳垢之处。A sit-down dinner was followed by a disco.晚宴之后播放了一曲迪斯科舞曲。...
She had effectively shut him out by refusing to listen.她拒不听他说话,并以此有效地将他排除在外。The management tries to produce the magazine as cost-effectively as possible.管理层试图尽可能地让杂志盈利。Services need to be more effectively organised than ...
Cosmic rays and X - rays produce energetic electrons by ionization.宇宙射线和 X 射线因其电离作用产生高能电子.Method: CBPI - M 25 - 0.25 capillary column and hydrogen flame ionization detector were selected.方法: 采用 CBP1 -M25-0.25石英毛细管柱,检测器为氢...
这一节将只讨论介质分层媒质.Only dielectric stratified media will be treated in this section.光波在激活媒质中来回穿过时,将不断得到加强.The wave continues to grow as It'sweeps back and forth across the active medium.麦克斯韦电磁场方程描写了媒质的这种可测量的扰动,而不去详细讨论以太本...
他的行为是上品的.His behaviour was in good taste.茅台是酒中上品.Maotai is a top - grade spirit.花茶以花香鲜灵持久,茶味醇厚回甘为上品.Top - grade Jasmine tea always has enduring fragrance and unforgettable after taste....