该经济型JJM手动纵切复卷机主要设计用于各种成本效益高的纸转换工艺，包括POS机辊，卷柜和工程机辊等。
The economical JJM Manual Slitter Rewinder is primarily designed for a variety of cost-efficient paper converting processes, including POS rolls, counter and engineering rolls, and others.
对技术的选择，可根据自身的经济条件，考虑选用效益高、成本低，适于应用的最佳可行技术。
When considering their technological options, an organization may consider the use of the best available technology where economically viable, cost-effective and judged appropriate.
这两个人中，哪一个的成本效益高？
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