基本解释[機械工程]底開卸料車英汉例句雙語例句The technology of car dumper unloading and technology of bottom-opened unloading wagon are simply introduced.簡要介紹繙車機卸車工藝和底開門卸車工藝的基本情況。bottom dumper更多例句专业释义機械工程底開卸料車