covariant tensor的用法和樣例：
例句
- The invariant tensor under projective transformations of semi-symmetric metric-recurrent connections is obtained.
給出了半對稱度量循環聯絡在射影變換下的不變張量。 - The invariant tensor under projective transformations of semi-symmetric metric-recurrent connections is obtained.
給出了半對稱度量循環聯絡在射影變換下的不變張量。
