back draft

• 反斜度,反拨模斜度,后牵伸,反拔模斜度

back draft的用法和样例：

例句

1. Draft allowances can be incorporated into dimensional tolerances or geometric tolerances only upon consultation with the foundry.
   拔模斜度余量只有经与铸造厂商定后才能合并到尺寸公差或形位公差中。