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....