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- net energy ratio 净能比
- Zero Net Energy Buildings: Are they Economically Feasible? 零能源建筑：是否在经济上可行？
- A new indicator cost of net energy taking into account the renewability (CNER) of a fuel is proposed. 摘要提出一个新的考虑燃料可再生性的净能源成本指标，燃料指标值越低表明燃料的总体表现越好。
- If the energy ratio is low, the hot gas is held in by the gravity of the galaxy. 若能量比较低，热气体将被星系的引力拘留。
- net dietary protein energy ratio 膳食蛋白质热能净比值
- Measure the grinding force in grinding process and compute the grinding energy ratio,analyzing the grinding mechanism. 试验还进行了磨削过程中磨削力的测试和比磨削能的计算,分析了陶瓷材料的去除机理。
- The method of net energy analysis for fuel ethanol from corn was developed based on principles of life cycle inventory(LCI) analysis. 基于生命周期清单分析原理,建立了玉米燃料乙醇的净能量分析方法。
- The concept of the model of energy ratio, which is an effective method to study phase morphology of immiscible polymer blends,was put forward. 指出了目前不相容聚合物共混体系相态反转数学模型的不足,提出了能量比模型的概念,认为这是研究不相容聚合物共混体系相态有效的方法。
- Second, truly independent studies on ethanol, such as those written by Tad Patzek of Berkeley and David Pimentel of Cornell, show that ethanol is a net energy loser. 其次，真正独立的研究显示，乙醇根本就是种一无是处的能源，提交此类研究结论的包括有加州大学伯克莱分校的TadPatzek和康奈尔大学的DavidPimentel；
- The cogeneration power plant CCHP system and compared systems were studied with model of primary energy ratio in the following paper. 运用一次能源利用率指标模型研究了以热电厂为核心的联供系统与对比系统的能耗。
- The life cycle total energy, fossil fuels, and petroleum consumption, net energy yield, and overall energy utilization degree of cassava-based fuel ethanol were assessed. 以总体能源消耗、化石燃料消耗、石油消耗、净能源产出和能源综合利用率为评价指标，对木薯燃料乙醇进行了生命周期能源效率评价。
- In order to seek the factors leading to lost energy of the power gener ating unit, the lost energy factor, local lost energy and relative lost energy ratio are utilized. 同时为了进一步诊断出机组能损的真正原因，为运行提供指导，提出了“能损因子”、“相对能损率”等概念。
- We show that there are two mechanisms responsible for the net energy exchange between an intense pulsed laser and an electron in vacuum, namely, stimulated Compton scattering(SCS) and non-linear Compton scattering(NLCS). 研究显示真空中强脉冲激光与电子之间的净能量交换主要源于两种量子机制,即受激Compton效应(SCS)和非线性Compton效应(NLCS)。
- In comparison with unmodified epoxy resin, the impart strength of modified epoxy resin by FH type polyether polyols has increased by 124%, the fracture toughness ratio by 89%, and the fracture energy ratio by 260%. 与未改性的环氧树脂相比，用FH聚醚多元醇改性环氧树脂的冲击强度增加124%25，断裂韧性比增加89%25，断裂能比增加260%25。
- According to the orthogonal wavelet conditions, a two-dimensional adaptive stationary wavelet which matches the fabric texture is constructed by using the average energy ratio between the defect area and defect-free area as optimal objective function. 摘要根据小波正交条件，通过使用疵点图像的疵点区与无疵点区能量均值比为优化目标函数，构造与织物纹理模式相匹配的二维自适应平稳小波。
- Two structural damage alarming indices including energy ratio deviation(ERD) and energy ratio variance(ERV) were put forward based on wavelet packet energy spectrum decomposed from the structural dynamic responses. 基于结构动力响应的小波包能量谱提出了两种结构损伤预警指标:能量比偏差和能量比方差。
- Study of net energy system on dietary of pigs 净能体系在猪日粮配制中的研究现状
- Net Energy Analysis of Corn Fuel Ethanol Life Cycle 玉米燃料乙醇生命周期净能量分析
- After-tax profit margin is the ratio of net income to net sales. 税後利润率指净收入与净销售之比。
- He hit the tennis ball over the net. 他把网球打过了网。
