A.管路設(shè)計(jì)過細(xì)B.閥門關(guān)閉不嚴(yán)C.密封圈脫落D.細(xì)磨損嚴(yán)重
A.地下底閥B.地下油罐C.地上單閥D.地上油罐
A.計(jì)量誤差=計(jì)量器讀數(shù)-實(shí)際出油數(shù)/實(shí)際出油數(shù)×100%B.計(jì)量誤差=實(shí)際出油數(shù)-計(jì)量器讀數(shù)/實(shí)際出油數(shù)×100%C.計(jì)量誤差=計(jì)量器讀數(shù)-實(shí)際出油數(shù)/計(jì)量器讀數(shù)×100%D.計(jì)量誤差=實(shí)際出油數(shù)-計(jì)量器讀數(shù)/計(jì)量器讀數(shù)×100%