one-side welding with back formation
常见例句
- Some technological problems such as precision of antenna ca-liber, one-side welding with back formation, etc. were solved. EBW procedure of pyramidal horn antenna was applied successfully.
解决了喇叭口径精度、单面焊双面成形等技术难点并成功应用于产品。 返回 one-side welding with back formation