为了使过程最优化, 目标函数的公式是必不可少的.In order to optimize the process, formulation of objective function is necessary.在经济学最优化问题中所含的变量差不多总是带有某种约束条件.In economic optimization problems the variables involved are almost always subject to ...
她在梦中焦虑不安，反映了她白天生活的基调。Her dreams were troubled, reflecting the tenor of her waking hours.在梦里你可以回到过去。In a dream you can be transported back in time.她时睡时醒，脑子里做着各种怪梦。She slept fitfully, her mind crowded with confusing dreams...
This feed is of special value in steaming up the ewes as they come to lambing.这种饲料对即将产羔的母羊补充营养很有用.Mrs King went to the big black stove and ladled out steaming soup.金太太走到黑色的大炉子前，舀出热气腾腾的汤来。Top the steaming hot potatoes wit...
亚当提出了多媒体应用的问题,从而引发了许多有益的讨论.Adam raised the issue of multimedia applications and much useful discussion ensued.欧洲消费者在辨别信息技术应用的潮流上表现迟缓。Consumers in Europe are slow to pick up trends in the use of information technology.同样,...
The conductor blew his whistle, and the tram stopped.售票员吹哨子, 电车停了下来.You can get to the beach easily from the centre of town by tram.你从市中心乘有轨电车到海滩会很方便。I had enough to do to catch the tram.我好容易才赶上电车....