These vortices developed within 30 minutes or so of each other.这些涡旋的产生彼此相隔半小时左右.The transport process inside tube is also enhanced by Dean vortices.由于Dean旋涡的存在,缠绕式膜组件也可促进膜管内的传递.Vortices accelerate reaction rates of the u...
如果河内和华盛顿之间的关系开始恢复正常，任何事情都有可能。If relations between Hanoi and Washington begin to normalise, anything is possible.密特朗总统昨天到达河内，以期结束长久以来殖民战争和冷战造成的敌意。President Mitterrand arrived in Hanoi yesterday to bury old colonial and co...
He was short and bald and had a moustache.他个头不高，秃顶，留着八字胡。The man's heavy moustache hid his upper lip completely.那个男人浓密的髭须完全遮住了他的上唇。The beginnings of a moustache showed on his upper lip.他的上唇部位开始长胡子了。...
Easy operation and maintenance, reliable and lubricating system and protection unit of guideway.机床操作、维护方便.配置有可靠的没头润滑系统和导轨防护装置.Conveyance bearings and other hemp wipe part of of infusing into and lubricating fat.运输类的轴承及其它...