The drive chuck and top sub are threaded into the cylinder with right-hand threads. The drill must be alway soperated with right-hand rotation.是什么意思_The drive chuck and top sub are threaded into the cylinder with right-hand threads. The drill must be alway soperated with right-hand rotation.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句