If so, the client and service could exchange subclasses of Order containing subclasses of Item.
如果是这样，客户端和服务就可以交换包含ite m子类订单的子类。
Let us consider the design of an Order service.
让我们考虑以下Order服务的设计。
You need to develop an application of Web service modules in a hierarchical order.
您需要按照层次结构顺序开发由Web服务模块组成的应用程序。
Operation identifies the operation of the partner service that will receive the production order.
operation识别将要接收生产指令的合作伙伴服务的操作。
Verify the order of the instances in the trust service chain modules is correct.
验证信任服务链模块中的实例的顺序是否正确。
The contract is a collaboration use, an instance of the Process Purchase Order service collaboration.
该契约是一个协作使用，是ProcessPurchaseOrder服务协作的一个实例。
Receives a small percentage of the profit from the printing service for each photo order.
按单位订单的标准，接受来自打印服务获利的一小部分作为回报。
Supervise, direct, coordinate, influence and persuade associates in order to maintain service standards of hotel.
指导、协调、影响员工以保持酒店服务标准。
Record order of guest following restaurant's service procedures.
按照服务流程记录客人的点单。
And a variety of simple order form for the majority of customer service.
并以多种简便的订购方式为广大顾客服务。
If you order room service, tip the waiter 15 percent of the bill.
如果叫了客房服务，应给服务生帐单金额的百分之十五作为小费。
By use of the electronic equipment, customers can get service and order product by themselves.
消费者借助终端设备，可自助定购产品、获取服务。
By use of the electronic equipment, customers can get service and order product by themselves.
消费者借助终端设备，可自助定购产品、获取服务。
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