Negative coefficients occur where there is a decrease in acoustic impedance across the reflecting interface.

当反射界面上下两侧的声波组抗降低时，反射系数就会出现负值。

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The first one called using the IBusinessAction interface and the other two, using reflection and passing parameters by message deserialization and reflecting them respectively.

第一个通过IBusinessAction接口，后两个是通过反射、消息的deserialization后的参数传递、并顺序反射。

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Returns an array containing field objects reflecting all the accessible public fields of the class or interface represented by this class object.

返回一field对象数组，映射该Class对象表示的类或接口中的所有可访问公共域。

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