downlead

常見例句

• 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 .
  該方法不需要解開桿塔接地引下線即可進(jìn)行接地電阻測(cè)量，解決了現(xiàn)有測(cè)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
  明敷防雷引下線近地端防護(hù)技術(shù)要點(diǎn)
• antenna downlead
  天線下引線
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