蒸汽压路机 zhēngqìyālùjī steamroller Origin Definitions Defs Strokes Stroke Words Sentences Sents 蒸汽 zhēngqì noun steam water vapor produced when water boils or evaporates; specifically refers to water in a gaseous state, as opposed to the broader term 蒸气 zhēngqì which includes other gases like mercury vapor压路机 壓路機 yālùjī road roller a heavy machine used for leveling and compacting roads or construction sites