back angle meaning in English
背垫短角材
背角面
背锥角
后背角；后视角
切削后角
Examples
- Adjustable seat back angle 5 positions
-可调节5个角度的靠背,满足不同 - Back angle quadrant
背角量角器 - Back angle level
背角水平仪 - By changing the fixed knife material , adding spacer , repairing the moving knife front and back angle , transforming the casting bond into double one , the effects were obvious
通过更换定刀材质，加放垫片，动刀修复前后角，改为双铸带头等后，效果显著。