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。
Equipment purchase contract system is the core of equipment purchase system.
装备采购合同制度是装备采购制度的核心。
The pro. and con. of contract purchase were compared.
并就合同购买的优劣进行了比较。
The pro. and con. of contract purchase were compared.
并就合同购买的优劣进行了比较。
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