全部

1·A unit of work may be an entire process, a function supporting a process, or a step of a business process.

工作单元可以是一个整体流程，一个支持流程的功能，或是一个业务流程的一个步骤。

2·Both of the two function are convex curvature images, which shows that with rainfall increasing, the amounts of soil erosion resulting from per unit rainfall increases step by step.

这两种函数特征都是一曲率凹向上的图象，它表明随着降雨量的增大，单位降雨量所引起的土壤侵蚀量在逐步增大。