earthed的例句（earthed在句子中的用法）

• He carefully earthed up the roots of the newly - planted tree. 他仔细地在新栽的树的根部培上土.
• 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达已关掉?
• Light fittings with metal parts should always be earthed. 有金属部件的照明装置都应该走地线。
• It is desirable that compensating cables be run in earthed conduit. 补偿导线最好在地下管道中穿过.