measurement of efficiency of locomotive机车: locomotive; engine; haulage ...效率: productiveness; efficiency; ...测定: determine; determination; se ...效率测定: efficiency test效率测定机: effeciency testing machine; efficiency testing machine下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:机车效率测定，即可在微信中查询翻译
