downlead

常见例句

This method does not need to untie the pole downlead then to carry on the earth resistance survey, has solved the biggest malpractice which in the existing measuring technique exists .
该方法不需要解开杆塔接地引下线即可进行接地电阻测量，解决了现有测量方法中所存在的最大弊端。
The Main Points of Technique to Defend the Lightningproof Downlead Port Laid near the Ground
明敷防雷引下线近地端防护技术要点
antenna downlead
天线下引线