notes里只有一句话解释

If a project has cash outflows during its life or at the end of its life in addition to its initial cash outflows ,the project is said to have a non-normal cash-flow pattern

没看懂这句话 谁给解释下 谢了~~~

non-normal cash-flow是说有additional cash outflows

就是说在工程期间或结束时有多余支出的，就是 non-normal cash-flow pattern