Consider a cyclic flow that has mutually exclusive branches; each branch has preconditions and invariants that apply to all activities in the branch. 假设有一个具有互斥分支的循环流;每个分支都有一些应用于该分支中所有活动的前置条件和不变量。
Exclusive economic zone crisis covers politics, economy, military, transportation, and other aspects, crisis management and international crisis management is an important branch of field. 专属经济区危机涵盖了政治、经济、军事、交通等各个方面,是危机管理和国际危机管理的一个重要分支领域。