英语词源
- symmetric (adj.)
- 1796, from symmetry + -ic. Earlier in the same sense was symmetral (1650s).
权威例句
- 1. After each reduction, the remaining equations remain symmetric and banded.
- 在每次约化后, 余下的方程是保持对称和带状的.
- 2. Tensors of this kind are called antimetric or skew - symmetric.
- 这类张量叫做反对称张量或斜对称张量.
- 3. He also obtained similarity solutions for longitudinal and spherically symmetric motions.
- 他也得出了关于纵向对称运动和球面对称运动的类似解.
- 4. A spherically symmetric structure of the earth has been assumed.
- 人们把地球的构造假设为球状对称.
- 5. This matrix is symmetric and banded , the band being equal to four.
- 这个矩阵是对称的且是带状的, 带宽等于四.