Auto-tuning VHF receivers are now common in cars.自动调节甚高频接收器现在普遍应用于汽车。The plane has UHF and VHF radios plus an instrument landing system.飞机配备了UHF和VHF无线电以及仪表降落系统.VHF Communication System: Effective range of 35 miles with m...
Dibromo neopentyl glycol was prepared from pentaerythritol and hydrobromic acid.由季戊醇、氢溴酸制备了二溴新戊二醇.In organic bromide turn thing production line, it is usually by - product large quantity hydrobromic acid.在有机溴化物的生产过程中, 往往...