他研究了摆线 、 圆外旋轮线和四点圆的旋轮线的几何性质.He investigates geometrical properties of cycloids , epicycloids, and hypocycloids.由于这个缘故,摆线又叫做等时曲线.For this reason the cycloid is called the tautochrone.分析摆线钢球行星传动减速器的振动特性.The vibration perfo...
People is chickenshit, heart is capacious.人是渺小的，心灵是广阔的。Gradually his capacious chin encroached upon the borders of the white cravat.他的广阔的下巴逐渐侵占了白领带的边界.His forehead is capacious and high, but square and heavy and unpleasa...
她大喊一声，向前冲去。With a cry, she rushed forward.那匹马突然向前冲.The horse leaped forward.我突然用力踩紧刹车踏板,结果我俩的身体都向前冲去.I suddenly pressed the brake pedal and we were both thrown forward....
gold bullion金锭silver bullion银条CDs, financial futures and bullion.我们经营大额存单 、 金融期货和金银块买卖.In the London bullion market yesterday, the price of gold was steady.昨天伦敦金银市场黄金价格稳定.Much bullion is stored in the vaults at Fort Knox...