The natural ecological cycle depends on plants, which absorb some pollutants and release oxygen to the air.
植物吸收了部分污染物质，并把氧气释放到大气中。
Furthermore, the ways about how to promote the economic recovery rapidly and how to keep the benign ecological cycle are put forward.
进而指出了既能促进尽可能快的经济复苏，又可保持生态环境系统良性循环的途径以及一些有关的政策问题。
By comprehensive utilization of biogas rural economics and eco - environmental sanitation can be improved and good ecological cycle can be formed.
开展沼气综合利用，能够促进农村生态环境的良性循环，改善农村环境卫生条件。
The optimization of the ecological function makes the entropy generation rate of cycle decrease greatly and the thermal efficiency increase with the cost of a little decreasing of the power output.
生态学优化以牺牲小部分输出功率为代价，较大地降低了循环的熵产率，而且在一定程度上提高了热机效率。
By using numerical solution method, the optimal cycle performance characteristics of the engine at maximum power output, maximum efficiency and maximum ecological function are analyzed and discussed.
应用数值方法，分析并讨论了热机在最大输出功率、最大效率和最大生态学函数下的优化循环性能特性。
This paper analyzed and optimized the power output, efficiency and ecological criterion of a universal irreversible combined Carnot cycle by using finite-time thermodynamics.
用有限时间热力学的方法分析具有热阻、热漏、内不可逆性的定常流联合卡诺型热机循环。
Energy is the currency of the ecological system, life becomes possible which food is converted into energy, on this cycle all life depends.
能量是生态系统货币，只有当食物被转换成能量，生命才变得可能，所有的生命依赖这一自然循环系统。
In arid areas, exploring the underlying water cycle problem in water-saving, water management, water rights and its social and ecological impact are the important tasks for the scientists.
在干旱缺水的西部地区，探讨节水表面蕴含的水循环科学问题、水管理科学问题、水权界定的社会问题以及与生态环境的相互作用问题，是科学工作者的重要任务。
Ecological drainage system is referred to following the principles of natural and industrial ecologic system and cycling economic pattern with which substances cycle with closed loop.
生态型排水系统是指遵循自然生态系统和工业生态系统的原则、符合物质闭环流动循环的经济模式。
Ecological drainage system is referred to following the principles of natural and industrial ecologic system and cycling economic pattern with which substances cycle with closed loop.
生态型排水系统是指遵循自然生态系统和工业生态系统的原则、符合物质闭环流动循环的经济模式。
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