D. Calculate the cost performance index.
计算成本绩效指数。
Two performance index formulae are introduced to determine the optimum topology design.
引进了两种性能指标公式来确定最佳拓扑设计。
A useful cost indicator is the cost Performance Index (CPI) shown in Figure 6. Like the SPI, the CPI is calculated.
一个有用的成本指示器是成本执行索引(CPI),如图6所示,CPI是被计算出来的。
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