产品的经济性是指产品的设计、制造、使用等各方面所付出或所消耗成本的程度。同时，亦包含其可获得经济利益的程度，即投入与产出的效益能力。
本文以客观的角度比较分析了节能电气产品的经济性。
This article shows the economical efficiency of energy conservation product by comparing and analyzing.
通过对石油机械产品服役环境和热镀产品的经济性分析，指出热浸锌技术在石油机械产品中具有广阔的发展前景。
Through analysis on service environment of petroleum machinery and economy of hot dip products, the paper considers that hot dip galvanizing is useful in petroleum machinery.
它非常有效，提供绝佳的燃油经济性，其唯一的副产品是水，所以它也是一架绿色飞机。
It is very efficient and offers great fuel economy, and its only byproduct is water, so it's also a 'green' aircraft.
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