Bevel gears: gears which connect two shafts at right angles.伞齿轮: 连接直角相交两轴的齿轮.The bevel milling cutter for cutting groove of oil casing - pipes was designed.设计了用于油气田管道坡口切割的角度铣刀.Precision forging technology is developed ra...
外汇基金则享有铸币收益.Thus the fund enjoys the seigniorage of the currency notes.今年,欧洲央行从铸币税中获得的利益正变得越来越重要.The ECB's gains from seigniorage are becoming increasingly important this year.堀田: 英格兰银行发行的纸币不是以金银铸币作为依据 吗 ?H : Weren&...