关于respirator的文学精选
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respirator造句
Twoothertypesofrespiratorsystemssolvetheleakproblem.HowdoIremoveanddisposeofmyrespirator?Whenwearingarespiratorforlongperiodsoftime,itmaybenecessarytotakemorefrequentshortbreaksorinterspersetasksnotre...
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oxygen respirator造句
Theoxygenrespiratoriswithsimplestructure,highreliability,largeoxygenstorageandlongtimeforkeepingpressure.Thesturctureandtheprincipleoftheoxygenrespiratorwithpositivepressureareanalysed.Baseonit,thepap...