According to the technical characteristics of the object, select the control valve flow characteristics.

根据工艺对象的特点，选择控制阀的流量特性。

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For example, the user should be able to select an object, select multiple objects, deselect objects, and select all objects.

例如，用户应该能够选择一个对象、选择多个对象、取消选择对象以及选择所有对象。

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For example, the user should be able to select an object, select multiple objects, deselect objects, and select all objects.

例如，用户应该能够选择一个对象、选择多个对象、取消选择对象以及选择所有对象。

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