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...
OBJECTIVE To improve the early diag - nosis and treatment of the isolated sphenoid sinus aspergilloma ( ISSA ).目的提高对孤立性真菌球性蝶 窦炎 的认识,以期早期诊治.His radicalism and refusal to compromise isolated him...他的激进主义与拒绝妥协使他受到孤立。Many of...
A truck driver used his CB radio to call for help.卡车司机用民用波段无线电呼救。The CCC 、 CQC 、 CE & CB Certifications for Motors were introduced.介绍了目前电动机的CCC、CQC、CE 以及 CB认证的基本情况.CB without halogen residues, can effectively improve the...