nonintersecting paths造句

例句与造句

1. The sums e ( a, b ) are replaced by formal power series, and the sum over nonintersecting path tuples now becomes a sum over collections of nonintersecting and non-self-intersecting paths and cycles, divided by a sum over collections of nonintersecting cycles.
2. It's difficult to find nonintersecting paths in a sentence. 用nonintersecting paths造句挺难的