linear differential operator造句

例句与造句

1. Denoting the set of " k " th order linear differential operators from an A-module P to an A-module Q with \ mathrm { Diff } _ k ( P, Q ) we obtain a bi-functor with values in the representing objects of the functors \ mathrm { Diff } _ k and related functors.
2. It's difficult to find linear differential operator in a sentence. 用linear differential operator造句挺难的
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