总可以做到使得简并的本征函数是正交的.It can always be arranged that degenerate eigenfunctions are orthogonal.此外, 这三个解全都是互相正交的.Further, these three solutions are all orthogonal to each other.和两个不同的主胁变相对应的主方向是互相正交的.The principal directions ...
Now it is clearing up, and a sparrow is beginning to chirp.现在天就要晴了, 一只麻雀已开始喳喳地叫.The sparrow crossed the lawn in a series of hops.那麻雀一蹦一跳地穿过草坪.Better work as hard as an ant than lead a parasitic life as a sparrow.宁做蚂蚁腿,不做...
Malawi hovered for years at the brink of famine.马拉维已在饥荒边缘徘徊了多年.Malawi, Cameroon and Western Samoa bring up the rear.马拉维 、 喀麦隆和西萨摩亚名列榜尾.Madonna has left Malawi after visiting the country with her four children.麦当娜在带着自己的四个...