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...
It is probably the most polluted body of water in the world.这很可能是世界上受污染最严重的一片水域。The collision took place in the busiest shipping lanes in the world.撞船事故发生在全世界最繁忙的航道上。It felt like the loneliest place in the world.感觉这就像是天底...