Gaseous CRM气体标准物质gaseousadj.气体的；气态的；似气体的；无实质的gaseous fire-extinguishing system气体灭火系统Gaseous Flowmeter Calibration Stand气体流量计校准台Gaseous Nitrogen Flow Measuring System气态氮流量测量系统gaseous hydrocarbon source sub-system烃类生成体系Gaseous hydrocarbon-oxidating bacteria气态烃氧化菌gaseous phase chromatogram-mass spectrum气相色谱-质谱法gaseous discharge-photocatalysis reactor气体放电-光催化反应器Gaseous fire-extinguishing system fire extinguishment七氟丙烷灭火系统试验研究