单词	可挑戰
释义	同Challengeable
随便看	operator interaction operator interface control block operator interface control block--opicb operator interface control block，opicb operator interface software operator interrupt operator interruption code operator intervention operator intervention section operator isomorphism operator (jacob & monod 1959) operator language operator length operatorless operator license of nuclear power plant operator lock out operator log operator logical paging operator-machine chart operator manual operator message operator monitor operator-monitor communication operator mutation operator notation