与表单一起加载的还有成本列表和审批人列表实例，因此用户可以在采购流程中从列表中选择审批人。
The form is loaded with the instances of the cost and approver list, so that the user can select the approver from a list, in this procurement process.
报价应该包括开发表单的成本和后续维护的预计成本。
The quote should include the cost of developing the forms and the expected cost of ongoing maintenance.
降低的开发成本（每个表单需要更少的开发时间）
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