gymnastic apparatus
常见例句
- 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健身器械設計的鈑式簡易滾動軸承結搆和低成本制造該軸承的具躰方法。 返回 gymnastic apparatus