1) Nitrogen metabolic efficiency
氮代谢效率
2) N metabolism rate
氮代谢率
3) metabolic efficiency
代谢效率
1.
The keys to studying urban sustainable development are material metabolic flux and metabolic efficiency, but urban material metabolic flux can reflect the metabolic rate, and its eco-efficiency can determine the metabolic capacity to support socio-economic development.
城市可持续发展研究的关键是城市物质代谢流量及其代谢效率研究,但物质代谢流量仅能反映代谢速率,而其生态效率则反映了支持社会经济发展的物质代谢能力。
2.
Based on energy analysis,an index framework of urban material metabolism including metabolic flux,metabolic stock and metabolic efficiency was proposed,by which the urban material metabolism level of four municipalities in China including Beijing,Tianjin,Shanghai and Chongqing in 2005 were investigated and analyzed.
采用能值分析方法,构建了基于城市物质代谢通量指标、代谢存量指标和代谢效率指标的城市物质代谢指标体系,并以北京、天津、上海和重庆四个直辖市为例计算了2005年四城市物质代谢状况。
3.
Phosphorus(P) input and output of four sub-systems(planting,animal husbandry,population and a simple sub-system representing all other inputs and outputs),the metabolic efficiency of the whole system,and the factors affecting pollution load are discussed.
运用物质流分析方法,对北京市地表饮用水源地——密云水库流域进行了磷循环特征的研究;分析了研究区域内种植业、畜牧业、人口和简单子系统内部及子系统间的磷输入输出状况,以及系统整体的代谢效率特征,讨论了流域水体磷污染负荷的影响因素。
4) gross metabolic efficiency
总代谢效率
5) nitrogen metabolism
氮素代谢
1.
Effects of exogenous Ca~(2+) on nitrogen metabolism in wheat seedlings;
外源钙离子对小麦幼苗氮素代谢的影响
2.
Effect of two diphenylethers herbicides on growth and nitrogen metabolism of peanut at the seedling stage;
两种二苯醚类除草剂对花生苗期生长发育及氮素代谢的影响
3.
Effects of doubled atmospheric CO_2 concentration on nitrogen metabolism of tra nsgenic Bt cotton under different nitrogen fertilization levels.
不同氮素水平下CO_2倍增对转Bt棉花氮素代谢的影响
6) Nitrogen metabolism
氮代谢
1.
Effect of appling malic acid on nitrogen metabolism of flue-cured tobacco;
施用苹果酸对烤烟氮代谢的影响
2.
Effect of carboxymethyl chitosan on nitrogen metabolism of rice;
不同浓度羧甲基壳聚糖对水稻氮代谢影响研究
3.
Effects of application of N and K fertilizers on nitrogen metabolism of two genetype varieties of maize under water-stressed condition;
水分胁迫下氮、钾对不同基因型夏玉米氮代谢的影响
补充资料：配置效率和生产效率
在经济学上，经济发展的动力，或者说效率的来源，分为两类：一类是配置效率，二是生产效率。所谓配置效率，是指给定资源和技术的条件下，怎么样使资源从边际生产率低的地方流向边际生产率高的地方，从而使得资源和利用更合理、社会总价值达到最大;而生产效率是指如何通过技术进步提高每一种资源的生产率，也就是把社会的生产可行性边界向外移。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条