Transaction and HTTP request metering based on CPU time per hour, minute, or second is the most accurate billing and metering model, as each transaction can be measured for total cost.

基于每小时、每分钟或每秒钟CPU时间进行的事务和HTTP请求计量是最准确的计费和计量模式，因为可以计算总成本中每个事务的成本。

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Abstract: Based on the transaction cost theory, establish the EPC contract mode and the traditional mode transaction cost model, and make a comparative analysis.

以交易成本理论为基础，建立EPC总承包模式与传统模式的交易成本模型，并进行对比分析。

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The transaction model upgrades efficiency and reduces the transaction cost which can make small sum transaction take place.

这种交易模式大大提高了效率，降低了交易成本，使得小额商品也能够进行拍卖。

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