tensor invariants造句

例句与造句

1. Other examples of sets of tensor invariants are the set of principal stresses ( \ sigma _ 1, \ sigma _ 2, \ sigma _ 3 ) or the set of mechanics invariants ( I _ 1, J _ 2, J _ 3 ).
2. It's difficult to find tensor invariants in a sentence. 用tensor invariants造句挺难的