Calcium nodules and secondary calcites are closely related to climate and micromorphology.钙质结核发及次生方解石形成既取决于气候,也与微地形有关.The study shows the importance of the micromorphology to the structural transformation in a temperatur...
探讨一种喷气织机四连杆打纬机构的动平衡方法.The dynamical balancing of beating up mechanism of air - jet loom is discussed.喷气织机打纬机构广泛采用瓦特型六 连杆机构.The Watt six - bar mechanism has been widely adopted as the beating up mechanism of air - jet loo...
an act of unprovoked aggression无端的侵犯行为Stephen was stabbed to death in an unprovoked attack nearly five months ago.斯蒂芬在近5个月前无故遭到袭击，被捅死了。Her angry outburst was totally unprovoked.她的暴跳如雷完全是无理取闹。...