本文还对热泵干燥、电加热干燥、蒸汽加热干燥的一次能源消耗和能源费用进行了比较和经济评价。
The primary energy consumption and the energy cost of the heat pump dryer are compared with those of electrical heating dryer and steam-heating dryer and their economic evaluations are carried out.
从环境经济学的角度，对一般常用的小型燃煤锅炉与燃油(气)锅炉的环境影响及运行费用进行了比较分析。
Environmental impact and running expense of minitype gas-fired boiler and oil-fired boiler are compared and analyzed in this paper from the environmental economy Angle.
从产权经济学角度看，节庆经济也有一个交易费用的比较问题。
From the view of economy of property right, festival is also a comparative question of trading expenditure.
同时，从工艺技术、征地、基建投资、运行费用等技术经济方面分别对可行的矿石和废石运输系统进行了详细的比较。
At the same time, the feasible ore and rock haulage systems are, in detail, compared in respects of technological process, land requisition, capital investment, operation cost, etc.
虽然修改奥托循环发动机使用“阿特金森循环”提供良好的燃油经济性，这是比较传统的四冲程发动机在一个较低的功耗，每位移费用。
While a modified Otto cycle engine using the "Atkinson cycle" provides good fuel economy, it is at the expense of a lower power-per-displacement as compared to a traditional four-stroke engine.
对四种常见储气方案的经济性进行比较，指出直接利用拖车管束储气时工程费用最少。对类似工程具有参考价值。
Comparison is made between costs required for the 4 types of equipment and the results show that vehicle container needs the least costs, which is beneficial to similar projects.
对四种常见储气方案的经济性进行比较，指出直接利用拖车管束储气时工程费用最少。对类似工程具有参考价值。
Comparison is made between costs required for the 4 types of equipment and the results show that vehicle container needs the least costs, which is beneficial to similar projects.
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