roof bit 中文意思是什麼
roof bit
解釋
頂板鉆頭-
Research and development of new drilling bit for roof bolt driller
錨桿鉆機新型鉆頭的研製 -
Draco malfoy : no. i ' ll leave it somewhere for longbotton to find. how about on the roof ? what ' s the matter, potter ? bit beyond your reach
德拉科?馬爾福:不,我要把它藏在某個地方,讓隆巴頓玩玩尋寶游戲。放在屋頂上怎麼樣啊?怎麼呢,波特?拿不到是吧?
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