电弧光保护技术
electric arc light protection technique
电弧光保护双判据
arc protection double criterions
电弧光保护系统
arc protection system
arc light protection system
电弧光保护装置
the Arc Light Protection Device
CO2气体保护电弧焊
CO 2 arc welding
CO 2 gas shielding arc welding
掉电保护电路
circuit protector against power failure
power-down protection circuit
活性气体保护电弧焊
metal-active gas arc welding
metal active-gas welding[LM
交流钨极惰性气体保护电弧焊接
alterative current tungsten inert gas welding
金属极隋性气体保护电弧焊
and Modification suggestion
滤光光电光度计
filter photoelectric photometer
脉冲熔化极惰性气体保护电弧
plused metal inert-gas arc
脉冲钨极惰性气体保护电弧焊接
pulsed tungsten inert gas welding
内聚光光电－光热复合管
internal-concentrator solar PV-T tube collector