Such configurations, obtained theoretically by calculation, are called models of a star.通过理论计算得到的恒星结构称为恒星模型.The other two configurations have overriding advantages for special applications.其它两种接法对特殊应用具有突出的优点.Spiral galax...
Such configurations, obtained theoretically by calculation, are called models of a star.通过理论计算得到的恒星结构称为恒星模型.High ductility and excellent bendability to form bends, loops and complicated configurations without fracture.良好...
I spent a very hectic Sunday.我度过了一个忙乱的星期天。The last few weeks have been hectic.过去几周一直忙得不可开交。My life was very hectic but empty before I met him.在遇到他之前，我的生活非常繁忙却很空虚。It's a bit hectic. I'm in the middle of cooking ...
他在北海学会了潜水员这一行的本事。He learnt his trade as a diver in the North Sea.在北海突然发现了一支法国船队。A fleet of French ships was sighted in the North Sea.他们在北海遇到风暴，船险些失事。They narrowly escaped shipwreck in a storm in the North Sea....
Also , try to avoid abbreviations. If you must abbreviate, use standard abbreviations.避免用缩略语, 如果必须, 要用标准缩略语.We shall abbreviate'directed graph'to digraph.我们将把“有方向的图”简称为方向图.She had lost the power to abbreviate t...