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.