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economic performance
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     Increase the economic performance.
     提高经济效益。
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     The Effect of Institution on Economic Performance
     制度在经济绩效中的作用
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     Performance Management
     绩效管理中“能”与“不能”
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     But with the economic
     但是随着经济环境的变迁,渠道权力有向消费者转移的倾向。
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  economic performance
The economic performance and emission features of diesel engines using diesel fuel and bio-diesel fuel are compared.
      
Using regions in the South of Russia as an example, the social and economic performance of the ethnoeconomy sector are explored.
      
The economic performance of the Russian economy in 2006 and a forecast for 2008-2010
      
Deepak Lal: Unintended Consequences: The Impact of Factor Endowments, Culture, and Politics on Long-Run Economic Performance
      
If the substitute of materials can be applied in Chinese enterprises producing cement, the technique can be advanced, and the remarkable economic performance can also be obtained.
      
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The fluidic controlled carburetter, which came into being with the advent of the application of fluidics to the automobile engine and has been adopted in the gasoline-supplying system of the engine, possesses many unique advantages. This treatise deals with the principle of oil supply, the distribution of flow and the selection of the control signal in the fluidic controlled carburetter with three parallel components, thus deducing the equation of balance of flow in the components. Expounded in the treatise...

The fluidic controlled carburetter, which came into being with the advent of the application of fluidics to the automobile engine and has been adopted in the gasoline-supplying system of the engine, possesses many unique advantages. This treatise deals with the principle of oil supply, the distribution of flow and the selection of the control signal in the fluidic controlled carburetter with three parallel components, thus deducing the equation of balance of flow in the components. Expounded in the treatise is the principle of oil saving achieved by virtue of positive pressure injection, secondary foaming and hit atomization caused by multiple oil pencils. It has been proved that the atomization in the fluidic controlled carburetter gets better and it can meet the needs of the engine for oil flow of any characteristic. Not only does the dynamic performance come up to the standard, but its economic performance has been greatly improved. The rate of oil saving is up to about 8% and vapor locking has been prevented. The above-mentioned advantages of the fluidic controlled carburetter are incomparable to those of the conventional single float carburetter. For the purpose of economizing energy resources, it is of great value-to introduce the fluidic controlled carburetter at the present time,

射流化油器是射流技术在汽车上的一种应用。它用于汽车发动机供油系统,具有独特的优点。本文论述了并联三元件射流化油器的供油原理、系统的流量分配方案和元件控制信号的选择原则、并推导出元件的流量平衡方程式。同时也论述了射流化油器具有正压喷射、二次泡沫化和多股油束碰撞雾化等省油原理。因而证明射流化油器雾化程度变好,并能够满足发动机对燃油流量的任意特性要求。它在动力性能达到标准的情况下,经济性能大大提高。省油率可达8%左右,而且防止了供油系统中汽油蒸气阻力现象。这些优点都是传统的浮子室化油器无法比拟的。在当前节约能源工作中,射流化油器有着重要的应用价值。

In this paper, the method to evaluate the economic performance of a flat-plate solar collector is put forward. Based on Hottel model, the practical formula available to calculate the insolation area of a flat-plate solar collector is plotted in dimensionless form as shown in Fig. 1. The method for optimization of the design of tube pitch and the thickness of plate for a flat-plate solar collector is well discussed. The charts (Fig. 2-Fig. 4) provided may be useful for the design and the manufacture of...

In this paper, the method to evaluate the economic performance of a flat-plate solar collector is put forward. Based on Hottel model, the practical formula available to calculate the insolation area of a flat-plate solar collector is plotted in dimensionless form as shown in Fig. 1. The method for optimization of the design of tube pitch and the thickness of plate for a flat-plate solar collector is well discussed. The charts (Fig. 2-Fig. 4) provided may be useful for the design and the manufacture of flat-plate solar collectors.

本文讨论了太阳能集热器经济性能的评价标准。在Hottel模型的基础上,提供了平板集热器采光面积实用计算式的无因次曲线。探讨了管板式集热器最佳管间距和板厚的选择,绘出了这些最佳结构参数选择的曲线。所有这些,都可供设计和制造太阳能集热器时参考采用。

Chinese Sanhe cattle originated in Northeastern China from the crossbreeding of Mongolian cattle with Simmental, Friesian and others, hence some Simmental characters still exist in the appearance of Sanhe Cattle. As a result of the estimation of gene frequence of the Simmental horn character in Simmental × Sanhe cattle F1 in 1980 compared with the appropriate traits observed in 1962 in Sanhe cattle, it was suggested that the Simmental horn character seems controlled by a recessive gene with multiple alleles....

Chinese Sanhe cattle originated in Northeastern China from the crossbreeding of Mongolian cattle with Simmental, Friesian and others, hence some Simmental characters still exist in the appearance of Sanhe Cattle. As a result of the estimation of gene frequence of the Simmental horn character in Simmental × Sanhe cattle F1 in 1980 compared with the appropriate traits observed in 1962 in Sanhe cattle, it was suggested that the Simmental horn character seems controlled by a recessive gene with multiple alleles. The estimated genotype frequencies of the homozygous Simmental horn character (Q), and others were fitted with the observed frequencies of Q's will be 0.5153, 0.7379, 0.8640 and 0.9651 for F1,G2,G3 and G4 Simmental x Sanhe catlle, respectively. Based on the economic important traits in selection, the horn character, as a gene marker of the pure Simmental breed could serve as the major selection criterion to choose better individuals in any stage of the grading-up crossing system. The new population formed from such a selection strategy should keep the good hardiness of the local cattle with high economic performance of Simmental. The equation:

据1980年西门塔尔与三河牛杂种的角相测定,将西门塔尔的角相与1962年三河牛相应性状对比,曾提出,西门塔尔角相可能是隐性遗传。西门塔尔角相在西门塔尔与三河牛杂种一代,二代,三代和四代中的估测基因型频率分别为0.5153,0.7379,0.8640和0.9651。在以经济重要性状为主进行选种时,角相可作为品种纯化的标志。级进杂交中及早选择纯化个体有利于保持本地牛的一些适应性。在群中估算有关基因频率可用下式:qn=(2n-1+qn)/2n

 
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