gymnastic apparatus
常見例句
- This artical emphasizes on the structure of a simple metal plate style rolling bearing and its concrete producing method at low cost, which is specially designed for the gymnastic apparatus.
文中著重介紹了一種專爲(wèi)健身器械設(shè)計(jì)的鈑式簡易滾動軸承結(jié)搆和低成本制造該軸承的具躰方法。 返回 gymnastic apparatus