它们遵循db2过程模型并提供一个同质的接口，可以将数据源中的许多特殊特性映射到DB2。
They follow the DB2 procedure model and provide a homogeneous interface that maps many special features in the data sources to DB2.
文章针对初始排污权的同质多物品特性，建立了多轮一阶密封投标拍卖模型。
Based on the homogeneous multi-unit characteristic of emission permits, multi-round first-price sealed-bid auction model is established.
在相同质量流量、相同压力降和相同泵功率等条件下，比较了两种通道的换热特性。
The heat transfer characteristics of the both passages are compared under the conditions of the identical mass flux, identical pressure drop and identical pumping power.
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