The calculate attribute defines the value that you want to bind to the node; in this case, you bind TaxTotal to the product of TaxRate and SubTotal.

calculate属性定义您希望绑定到节点的值；在本例中，您将TaxTotal绑定为TaxRate和SubTotal的乘积。

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Objective:To compare the value between subtotal resection of vertebral body with internal fixation and simple trephine decompression in treatment of CSM.

目的比较单纯环锯减压柱状植骨与椎体次全切除植骨加内固定治疗脊髓型颈椎病的效果。

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