all-the-year-round housing

housing... ... aligning housing ring 球面外衬圈 all-the-year-round housing 全年舍饲 axle housing 轴壳，轴箱 ...

all the year round是什么意思_all... ... spring all the year round1. 四季如春 all-the-year-round housing1. 球面外衬圈 ...