To increase your understanding about when ClearQuest executes each kind of hook and to help you evaluate the hook code, see the Information center topic Execution order of field and action hooks.
为了增加您对 ClearQuest 什么时候执行每种类型 hook 的理解，并帮助您评价 hook 代码，您可以查看信息中心来得到字段与操作的执行顺序。
Therefore, regardless of wind direction, the combined action of two hooks can hang the hanger firmly on the clothing rod, and the hanger can not fall.
此时，不管风向如何，两挂钩的共同作用可将衣架稳稳悬挂在衣杆上而不会掉下来。
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