This combination, including a modifiable parameter, allows you to define the direction of the transformation.
这个组合，包括可修改的参数，使你能够定义转换的方向。
The next parameter is the direction and speed of gravity.
下一个参数是重力的大小和方向。
The direction of this execution context parameter should be set as IN_OUT, since the information it carries goes back and forth between the calling component and the rule service.
这个执行上下文参数的方向应设置为IN_OUT，因为它携带的信息在调用方组件和规则服务之间来回传送。
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