The invention discloses a light steel stud, which takes the structure of a channel beam or an I beam, and a preformed opening (22) is arranged on the light steel stud (12).是什么意思_The invention discloses a light steel stud, which takes the structure of a channel beam or an I beam, and a preformed opening (22) is arranged on the light steel stud (12).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句