大多数黄土被认为是一种风成沉积.Most loess is considered to be an eolian deposit.被称为黄土的风成沉积物,在许多地区均有.Wind - deposited sediment called loess occurs in many places.表面上很少显示出风成沙波纹或风成细砾波纹.The surface rarely shows such features as wind ripple...
The conditions of simultaneous diagonalization of two matrices are given.摘要给出两个矩阵同时合同对角化与同时相似对角化的一些条件.In this paper, we mainly discuss the diagonalization of a special kind of block circulant matrices.本文主要探讨了一类特殊的分块循环矩阵的...
The birds sing songs and the cool breeze fondle the green grass.鸟儿唱歌和凉风抚弄的绿草.Mothers and fathers must have a chance to fondle their new babies.父母一定有机会来爱抚他们的新生儿.Fondle light breeze from my cheek, scattered fat sister fall...