Because a property is used by different messages to define correlation data, a mechanism is needed that allows pointing to a dedicated field of the message that represents this property.
由于属性被不同的消息用来定义相关性数据，所以需要一种机制来允许指向表示这个属性的消息的专用字段。
Dedicated field: hospital adornment design, high-grade private clinics design, hospital brand logo...
致力领域：医院装饰设计、高档私人诊所设计、医院品牌标志设计。
Dedicated field: hospital adornment design, high-grade private clinics design, hospital brand logo...
致力领域：医院装饰设计、高档私人诊所设计、医院品牌标志设计。
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