例句與造句

1. Modules with invariant factors over commutative rings
   變換環(huán)上具有不變因子的模
2. The invariant factors of orthogonal polynomial for two variables and numerical integration formulas
   二元直交多項(xiàng)式的不變因子與數(shù)值積分公式
3. It's difficult to find invariant factor in a sentence. 用invariant factor造句挺難的