quadric cone造句

例句与造句

1. Together, these two possibilities for the intersection of and demonstrate that is a quadric cone.
2. The dimension bound here is optimal, as shown by the example of the 3-dimensional quadric cone, above.
3. In general, however, a Weil divisor on a normal scheme need not be locally principal; see the examples of quadric cones above.
4. It's difficult to find quadric cone in a sentence. 用quadric cone造句挺难的