We doubted him a liar.我们怀疑他是个骗子。They doubted his speeding up steps.他们怀疑他是否能加快步伐。No one doubted his ability...没有人怀疑他的能力。His justness is not to be doubted.他的公正毋容置疑.He doubted if he would learn anything new from Marie...他认为...
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...