常見例句雙語例句The utility model relates to a variable transmission gudgeon block driving box of a paper cutter, which is suitable for the transmission systems of various paper cutters.一種切紙機的變速傳動軸承敺動箱，適應(yīng)於各種切紙機的傳動系統(tǒng)用。ip.com 返回 gudgeon block