对于与复合状态兼容的每一种元数据类型，子状态机中的每一个转换都有一个限制策略。

For each metadata type compatible with a composite state, every transition in the sub-state machine has a policy for restriction.

youdao

在大量的值之中，一个节点记录了最少的信息，包括一个ID、一个标题、状态、一种类型和一个作者。

A node records a minimum of information, including an ID, a title, status, a type, and an author, among a handful of other values.

youdao

每种类型的输入项都是一种状态的候选项。

Each type of input item is a candidate for a state.

youdao