每个登录数据类型在IBiBusHeader 2类中有一个对应的函数，用于从传递给logon函数的请求中获取登录数据。

Each type of logon data has a matching function of the IBiBusHeader2 class to be used to retrieve it from the request which is passed to the logon function.

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从传递给validate(…)方法的内容对象之中，会获得所有的MySQLDatabaseSystemUnits以及以下的代码。

From the context object that is passed to the validate (...) method, all MySQLDatabaseSystemUnits are retrieved with this code.

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食物和氧气很容易从妈妈身体传递给胎儿。

FOOD and oxygen pass easily from mother to fetus.

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