The authors show that the hyperboloid of one sheet and the hyperbolic paraboloid are ruled surfaces.作者证实:单叶双曲面和双曲抛物面是直线曲面.The mathematical model of the hyperboloid twist drill was introduced.介绍了以旋转单叶双曲面作麻花钻钻尖后刀面的数学模型.The...
对于自己那台车性能的稳定性他根本不担心。He's not at all worried about his car's reliability.同时,政治稳定性将放在首位。Political stability, meanwhile, will be a prime concern.工作稳定性已成为很多员工衡量一份工作好坏的标准。Job security has become the touchstone of a ...
建议对 节水 技术和低碳能技术增加更多的投资.It recommends greater investment in - saving technologies and low carbon energy.摘要面向装配的设计是并行工程中的一项重要的使能技术.Design for Assembly ( DFA ) is an important enabler in concurrent engineering.数控技术是发展新兴 高新技...
该研究所表示,引起这种综合症的是一种尚未确认的病毒.The Institute says that an unidentified virus is to blame for the syndrome.我会给你回电话确认的.I'll call you back to confirm.怀特先生,我会尽快给您确认的.I'll confirm your appointment as soon as possible, Mr...