英语语法分析

Dealing with HL7 cardinality and optionality.

处理HL7基数和可选性。

Generally, you don't have to worry about optionality or call provisions and so it's math.

一般来说，没有必要去担心期权性风险，或赎回条款，就只是数学游戏。

On the other hand, elements such as the controlActEvent should have optionality removed because they are always required.

另一方面，诸如 controlActEvent 之类的元素应该删除了可选性，因为总是需要它们。