closed-chain hydrocarbon

进出口... ... closed water heater 密闭热水器 closed-chain hydrocarbon 闭键烃 closed-circuit air turbine 闭式循环空气透平 ...

... closed-cell foamed plastics 闭孔泡沫塑料 closed-chain hydrocarbon 闭链烃 closed-circuit refrigeration 闭合循环致冷 ...