welding allowance

例句：

1. 1.The engineer calculated the welding allowance for the new machine.
   工程师为新机器计算了焊接余量。
2. 2. The welding allowance was used to compensatefor any minor imperfections in the metal.
   焊接余量用于补偿金属中的任何微小缺陷。
3. 3. The welding process requirescareful consideration of the welding allowance to ensure a strong and durable joint.
   焊接过程需要仔细考虑焊接余量，以确保接头牢固耐用。