C/B length是什么意思

用法例句

For the one droplet per pulse transfer of pulsed metal active gas(MAG) welding,a novel pulsed waveform with backward median phase was presented.

针对脉冲MAG焊一脉一滴熔滴过渡过程的控制,提出后中值脉冲新工艺方法,分析了后中值电流及后中值时间对脉冲MAG焊接过程的影响规律。