projective metric造句

例句与造句

1. He is the coauthor of three textbooks : " Projective geometry and projective metrics " ( 1953, with Herbert Busemann ), " Geometry and convexity " ( 1979, with Max L . Weiss ), and " The non-Euclidean, hyperbolic plane : Its structure and consistency " ( 1981, with Gordon Matthews ).
2. It's difficult to find projective metric in a sentence. 用projective metric造句挺难的