control spring造句

例句与造句

1. Pressure control spring
   压力控制弹簧
2. Model sxb 430 book sewing machine adopts stepless change device , central lubricating system , parallel control spring for sewing frame and has safety guards on all moving parts
   该机采用无级调速装置，集中润滑系统和订书架的平衡控制，运动部位均设有安全防护罩，故机器运装平稳，噪音低。
3. It's difficult to find control spring in a sentence. 用control spring造句挺难的