我厌倦了当簿记员。I was tired of being a bookkeeper.处女座穿着熨帖的套装,逢人便说自己是簿记员.Virgo wears a neatly - pressed suit and tells everyone they're a bookkeeper.这位簿记员长于计算.The book keeper figured well....
齿轮指形铣刀样板是加工大模数齿轮的主要辅助工具.The finger milling - cutter templet involute gear is the assistant tool mostly to machining big module gear.本文着重阐述了渐开线齿轮齿根过渡曲线的确定以及使用微机设计齿轮指形铣刀样板的方法.It is rapid and accurate in design and drawing ...