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 ...
Promptly at one, luncheon was served.午饭一到一点钟就上桌了。A casserole was already in the oven cooking gently for luncheon.焙盘菜已放在烤箱里慢慢煨着等午饭时吃.We have luncheon at twelve o'clock.我们十二点钟用午餐....
Jessica caught sight of Lois and waved to her.杰茜卡看到了洛伊丝，就冲她挥手致意。"I'm not an authority on them," Jessica said with forced lightness.“我又不是这些方面的权威，”杰茜卡故作轻松地说。Jessica settled into her chair with a small sigh of relief.杰...