crater arc造句

• Multiple functions available ： start / crater arc current , increase / decrease time , base / crest value current , pulse frequency , pulse rate , post flow time , hf welding
  功能丰富：起始/收弧电流、上升/下降时间、基值电流、峰直电流、脉冲频率、占空比、滞后关气时间分别可调，高频引弧。
• Multiple funcyions available : start / crater arc current , increase / decrease time , base , crest value current , pulse frequency , pulse rate , post flow time , hf / friction welding , water / gas cooling
  功能丰富：起始/收弧电流、上升/下降时间、基值电流、峰值电流、脉冲频率、占空比、滞后关气时间分别可调，高频/接触引弧、水冷/气冷可供选用。