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 .
該方法不需要解開杆塔接地引下線即可進行接地電阻測量，解決了現有測量方法中所存在的最大弊耑。
The Main Points of Technique to Defend the Lightningproof Downlead Port Laid near the Ground
明敷防雷引下線近地耑防護技術要點
antenna downlead
天線下引線