最高阶导数线性地出现的那种方程是准线性方程.A quasilinear equation is one in which the highest - order derivative appears linearly.这种 “ 导数边界条件 ” 的规定描述于 3-5 节中.The specification of such " derivative boundary conditions " is described in Sectio...
Noisome vapours arise from the mud left in the docks...难闻的蒸汽由船坞中余留的泥浆散发出来。Strange vapours burst out of the factory during the accident.事故发生的时候,有奇怪的水汽从工厂里喷出来.His brain was clouded by vapours and dreams.他的脑子里充满空想和梦幻.I dest...
你何必为已发生的事没完没了地自责?Why do you persist in blaming yourself for what happened?你何必自找麻烦为你姐姐的狗所累 呢 ?Why do you burden yourself with your sister's dog?你何必替这种人卖力?Why should you work so hard for these people?...
Brain lesions can be caused by bacterial infections.大脑损伤可能由细菌感染引起.Leaves will usually have a cooked appearance, with dark brown, reddish lesions.叶子常呈火烧状, 暗棕色, 红色的病痕.Disfiguring subcutaneous lesions bulge onto the surface...