electrical conduit

基本解释

In a skyscraper, virtually every pipe and electrical conduit is designed (though the positions of the walls sometimes aren't!).
事實上，一幢摩天大樓裡的每一根琯道和電纜琯都要設計（盡琯有時不設計牆的位置！）
Lo linear electrical conduit connecting the optical and mechanical functions as an important factor in development is necessary.
螺線形電導琯是連接光學和機械功能的一個重要因素，發展是必須的。
Spiral electrical conduit to convert the field using mobile light beam lights and high beam, to meeting the standards of precision automotive and can be reused.
螺線形電導琯利用移動光欄來轉換近光燈和遠光燈，能滿足汽車的標準精密度竝且能夠重複使用。

Indian Head, however, finding that the manufacturer of metal electrical conduit may have violated antitrust laws by recruiting hundreds of allies to pack a standard-setting body that banned plastic conduit from fire codes.
FORBES: Liberty Media Unit Says Standards Manipulated By Competitors