CAI offers a mechanism to fetch the sensor data at certain times (pull mechanism).

CAI提供一个机制(pull机制)来获取某个时间的传感器数据。

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To support the pull mechanism, a business component must implement the Sensor interface.

要支持pull机制，一个业务组件必须实现Sensor接口。

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To support the pull mechanism, a business component must implement the Sensor interface.

要支持pull机制，一个业务组件必须实现Sensor接口。

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