跳过处于结束状态的活动。
最终进入结束状态，比如Closed。
描述—开始状态、结束状态主流程描述和变更。
Description — start state, end state, description of main flow, and variations.
此前，科学家们只能观察运动的开始或结束状态。
Previously, scientists were only able to observe the beginning or end states of the motion.
此变量在声明任务时或任务到达结束状态以后可用。
It is available when a task is claimed or has reached an end state afterwards.
第二，传统农业生态系统常处于氮约束和水约束状态。
Second, traditional agroecosystem is usually at N-Limitation and water-limitation.
第二，传统农业生态系统常处于氮约束和水约束状态。
Second, traditional agroecosystem is usually at N-Limitation and water-limitation.
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