反应气体-活性气体  RDS; reactive cathode

大气痕量气体  trace gas monitoring; atmospheric trace gas

痕量气体  Trace gases; Trace gas molecular; trace gas

痕量气体分析  trace gas detection; Trace gas analysis

痕量气体监测仪  trace-gas monitor

痕量气体检测  trace gas detection

抗体活性量  Antibody activities

活性气体  reactive gas; active gas

活性气体保护电弧焊  metal-active gas arc welding; metal active-gas welding[LM

活性气体等离子体  reactive gas plasma

金属熔化极活性气体保护焊电弧  metal active gas arc

卤素气体活性  halogen gas activity

双丝脉冲熔化极活性气体保护焊  double-wire pulse metal active gas welding

惰性气体气垫  inert gas pad

气体-气体热交换顺  gas-to-gas heat exchanger

渗入空气充满气体气体化  aerification

踪迹微量痕量记录器的图录  trace

背景当量活性  Activity; background equivalent

超微量气体流量计  ultra-trace gas flowmeter