The coded signal is received by satellite dish aerials.编码信号由碟形卫星天线接收。Dish aerials are highly directional.碟形卫星天线的定向性非常强。Are the ship's main radio transmitter aerials earthed and radars switched off?液货船上主无线电发射机天线已接地且雷...
The gonadal arteries are generally of relatively small caliber.一般来说,生殖腺动脉的内径都相对较小.Substances like cyproterone acetate are used to suppress the gonadal hormone production.像去乙酰环丙氯地孕酮醋酸盐的物质被用来抑制性腺激素的分泌.Objective To discuss ...
the process of decontaminating areas exposed to radioactivity清除受放射污染地区有害物质的过程The soil contains 30 times the acceptable level of radioactivity.这片土壤受到了高于标准30倍的辐射.The site was found to be contaminated by radioactivity.发现此地受...