The assertion is known as the closed graph theorem for Hilbert spaces.这个断语被称为希耳伯特空间的闭图象定理.For finite - dimensional spaces determinants can be brought into play.在有限维空间中可以运用行列式.The open , needle - like spaces in the athero...
...the capacity to convey subtle shades of meaning.能表达意思上的各种微妙差别的能力Doctor Mao let astonied, ask her: " What meaning is this? "毛医生听了大吃一惊, 问她: “ 这是什么意思? ”At ( long ) last he knew the meaning of life.终于,他知道了生命的意义.I hadn...