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 ...
Well developed , thick , with moderate flews and slightly pendulous lower lips.构造相当, 厚实, 有适度下垂的上唇,可垂至比嘴唇更低处.He nervously moistened his lips with his tongue.他紧张地用舌头润了润唇。His tongue flicked across his lips...他的舌头迅速舔了一下嘴唇。Th...
He told some lies and sometimes just embroidered the truth...他说了些谎，有时只是对事实添油加醋了一番。Such as : hydrangeas, embroidered shawls, Zhuang Jin - hanging, such as embroidery Xiangbao.如: 绣球 、 刺绣披肩 、 壮锦壁挂 、 刺绣香包等.He fumbled at the ...
恐怕是急性胃炎.I'm afraid it's an acute gastritis.胃炎可引起类似消化性溃疡的症状.Gastritis may cause symptoms resembling those of peptic ulcer.萎缩性胃炎与胃癌的关系尚有争论.The relationship of atrophic gastritis to cancer has been debated....