preweld interval

例句：

1. 1. Thewelder used a preweldinterval of 0.5 mm toensure the joint was secure.
   焊工使用了一个0.5毫米的预焊接间隔来确保焊缝牢固。
2. 2. During thewelding process,it's important to maintaina consistent preweld interval toavoid any potential issues.
   在焊接过程中，保持一致的预焊接间隔非常重要，以避免任何潜在问题。
3. 3. The manufacturer recommends apreweld interval of at least1.5 mm for optimal performance.
   制造商建议至少1.5毫米的预焊接间隔以获得最佳性能。