direct-acting recording instrum-ent
【化】 直动阀
direct-acting valve
暂无补充释义。
direct-acting valve
暂无补充释义。
direct-acting recording instrum-ent
direct-acting instrument【仪】
direct-acting
direct-acting controller【计】
direct-acting pump【机】
direct-acting【科技】
direct-acting recording instrument【仪】
direct-acting magnetic system【电】