It is good practice to define and register domain roles in the activation phase of a business component.

在业务组件的激活阶段定义和注册域角色是一个很好的练习。

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During the activation phase, the activation engine reads the parameters from an XML file (activation profile), validates the parameters, and passes them to each registered script.

在激活阶段中，激活引擎从XML文件(激活配置文件)中读取参数，验证这些参数，并将它们传递到各个注册的脚本。

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Muscle activation: This phase involves four-second contractions of major muscle groups in the lower body, including calves, quadriceps, hamstrings, hip flexors, groin, and hip and lower back muscles to help athletes increase awareness of individual muscle groups.

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