surface y造句
造句与例句手机版
- More precisely, let X be a smooth morphism from X to another smooth projective surface Y such that the curve C has been contracted to one point P, and moreover this morphism is an isomorphism outside C ( i . e ., X \ setminus C is isomorphic with Y \ setminus P ).
- It's difficult to see surface y in a sentence. 用surface y造句挺难的