在每次约化后, 余下的方程是保持对称和带状的.After each reduction, the remaining equations remain symmetric and banded.这个矩阵是对称的且是带状的, 带宽等于四.This matrix is symmetric and banded , the band being equal to four.我们在大部分实际问题中得到的方程组不仅是对称的而且还是带状的.The ...
Because the corals are alive, they provide a continuous supply of material.由于珊瑚是活着的, 它们提供了源源不断的材料供应.The number of different fishes adn beautiful corals will impress you.不同的鱼和美丽的珊瑚礁的数量会给你留下深刻的印象.The corals iridescent unde...