表1图证明了一个现象就是，任何标识公司都可以评估每次使用成本。
The illustration in Table 1 shows a typical exercise that any sign company can go through in order to evaluate "cost per use."
每次使用这个交通系统，考虑到它的成本和复杂程度，我都惊讶于它是怎么建造起来的。
Every time I ride on this system, I am amazed at how it got built given the cost and complexity involved.
本文还介绍了当碰到吞吐量降低问题时应该采取哪些措施、以及如何使用时间成本和每次sql语句执行读取行数来分析DB 2快照。
It described what to do when encountering a throughput degradation problem and how to analyze DB2 snapshots using time costs and rows read per SQL execution.
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