Notification can also be used to trigger events, such as reacting to a state change that surpasses a given threshold, as in the case of dwindling resources like memory or disk space.
通知还可以用于触发事件，如对于超过设置阀值(比如内存或者磁盘空间等资源不足)的状态改变做出反应。
An experiment can change the state vector arrow, projecting it in just one direction in the space.
一个实验能改变量子态方向，让它只在空间的一个方向上。
By providing these 4 elements, the Reference Ontology allows the state change that occurs in both the information space and in the real world to be effectively described.
通过提供这四个元素，该参考本体论允许在信息空间以及现实世界两者所发生的状态改变都能被有效的描述。
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