词汇	automatic nonreturn valve
释义	automatic nonreturn valve 自动逆向阀
随便看	Qualified iodine salt rate Qualified iodized salt qualified iodized salt utilization ratio Qualified iodized salt utilization ratio qualified job name qualified job-seeker Qualified judgment Qualified Kindergarten Teacher Education Course qualified kindergarten teachers qualified librarian qualified life qualified list qualified logical link qualified logical link control qualified logical-link control Qualified Logic Link Control for SNA over X qualifiedly qualified majorities qualified majority qualified majority vote Qualified Majority Voting qualified manpower Qualified Manufacturers List qualified medical aid qualified medical technical personnel