单词：welding speed
welding speed的用法和样例：
例句
- Avoiding the undercut is the key factor to raise the welding speed.避免咬边是提高焊接速度的关键问题。
- It also involves a new type of welding parameter display system, can display voltage, current and welding speed.本文还涉及到了新型的焊接参数显示系统，可以显示电压，电流和焊接速度。
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