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 ...
...the electrified section of the Lancashire and Yorkshire Railway.兰开夏郡至约克郡铁路的电气化路段He was brought up in North Yorkshire.他是在北约克郡长大的。...rugged Yorkshire moorland.约克郡多岩石的荒原...a shooting party on Lord Wyville's estate i...
It was, he said later, one of the blackest days of his political career.后来他说，这是他政治生涯中最黑暗的日子之一。A lie which is half a truth is ever the blackest of lies.真假参半的谎言最险恶.This was one of the blackest crimes ever committed.这是迄今犯下的...