Then introduced the basic conception, model and their solving schemes for the electronic commerce.

然后介绍了电子商务的基本概念、模型及解决方案。

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The conception model, assembly model and parts model of pneumatic hole impinger are established by the method of intelligent modeling.

采用智能产品建模的方法，建立了气动潜孔冲击器的概念模型、装配模型和零件模型。

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The prerequisite of evaluating kinds of electricity generation technologies scientifically and fairly is to establish a unified conception, model and method of the generating cost accounting system.

科学与公平地评价各种电力生产方式的前提是建立统一的成本核算概念、模式和方法体系。

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