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...
Crusoe spent his time as a castaway building and inventing.克鲁索过着不断建造和发明的漂流者的生活.This old man was a castaway Englishman, Henry Atkins by name.这个老头儿是个落魄的英国人, 名叫亨利?阿特金斯.Lily had the doomed sense of the castaway who has signa...
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...