单词	packoff
释义	packoff 封堵 ; 封塞
随便看	hydrogen-colled generator hydrogen collision hydrogen combustion hydrogen complex hydrogen compound hydrogen compressor hydrogen concentration hydrogen contact hydrogen container hydrogen-containing hydrogen-containing alloy hydrogen content hydrogen content in capping layer hydrogen controlled covering hydrogen controlled electrode hydrogen control system hydrogen convection layer hydrogen convertor hydrogen coolant hydrogen cooled hydrogen-cooled compensator hydrogen-cooled generator hydrogen cooled generator hydrogen-cooled machine hydrogen cooled machine 箛箜箝箞箟箠管管1 管2 管3 35809 35810 35811 35812 35813 35814 35815 35816 35817 35818