The Doppler frequency can be obtained as a heterodyne or beat effect.由于外差或频差效应,能够得到多普勒频率.That's a heterodyne receiver.那是外差式接收机.Function test and calibration self - heterodyne curve for direction finder on sea trial....
That's a heterodyne receiver.那是外差式接收机.The Doppler frequency can be obtained as a heterodyne or beat effect.由于外差或频差效应,能够得到多普勒频率.Function test and calibration self - heterodyne curve for direction finder on sea trial....
He managed to cling on to a ledge 40ft down the rock face...他设法紧紧地攀在了距岩壁顶端 40 英尺的岩礁上。She had to cling onto the door handle until the pain passed...她只好紧紧握住门把手，直到不疼了才松开。Wet clothes cling to the body.湿衣服贴身.She had to cling ...
The monkeys had been immunized with a vaccine made from infected cells.这些猴子已经注射了由受感染的细胞培养而成的疫苗。We should require that every student is immunized against hepatitis B.我们应要求每个学生都注射乙肝疫苗。Children have been routinely immunized...
In the shadow of his breastbone.他的胸骨的阴影里交谈.Body -- The chest is deep and long with the breastbone sharply angled and prominent.胸部长而深,胸骨角度锐利而突出.The center front of your bra should lie flat against breastbone.金属线应平躺在你胸罩的前面...