成本效益;
例句:
1、
Conclusion It could obviously reduce experimental benefit-cost ratio with newly born bovine serum.
结论:应用加有小牛血清的培养液可在不影响培养效果前提下明显降低实验成本.
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2、
3、
Other methods internal rate of return, benefit cost ratio-can lead to incorrect decisions.
其他方法,如内部收益率, 收益 - 成本比率等,可能导致错误的决策.
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