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Then, on the basis of above achieved constituent binary results, thermodynamic properties of 10 ternary liquid alioys (Cd-Bi-Pb, Cd-Pb-Sb, Cd-Pb-Sn, Mg-In-Cd, Zn-In- Cd, Cd-Bi-Sn, In-Bi-Pb, Sn-AgPb,Zn-In.Pb, Al-Cu-Zn), 3 quaternary ones (Cd-Bi-Pb-Sn, Zn-Sn-Cd-Bi, Zn-Sn-Cd-Pb) and 1 quinary. one (Zn-Sn-Pb-Cd-Bi) are predicted. For most of investigated multicomponent systems, the calculated activities are in good with the experimental ones, and in particular for multicompoment immiscible ones, the predicted results are satisfactory and exciting. At the same time, the comparison result between the three equations shows that Wilson equation and T-K-Wilson one are more stable than NRTL one, that maybe is because NRTL equation contains a third parameter, and so ,to some degree, Wilson model and T-K-Wilson model are superior to NRTL model. And also the comparison between local composition models and other models such as Pelton- Flengas?method, Krupkowski formalism, mass action concentration model and Hoch- Arpshofen model shows that local composition models are more convenient and credible.
在此基础之上应用局部组成型模型对10个三元液态合金(包括Cd-Bi-Pb、Cd-Pb-Sb、Cd-Pb-Sn、Mg-In-Cd、Zn-In-Cd、Cd-Bi-Sn、In-Bi-Pb、Sn-Ag-Pb、Zn-In-Pb、Al-Cu-Zn),3个四元液态合金(包括Cd-Bi-Pb-Sn、Zn-Sn-Cd-Bi、Zn-Sn-Cd-Pb)和1个五元液态合金(Zn-Sn-Pb-Cd-Bi)的活度进行了预测,预测效果良好,尤其对Zn-In-Pb系和Zn-Sn-Cd-Pb等多元液-液共存体系热力学性质的预测也取得了令人满意的结果;同时对三个方程的比较分析表明:Wilson方程和T-K-Wilson方程在多元系热力学性质的预测中表现稳定,而NRTL方程由于引入了物理意义不清楚的第三参数,使得其具有不确定性和不稳定性的特点,因此Wilson方程和T-K-Wilson方程较NRTL方程更为优越;此外对局部组成型模型与其它模型(如Pelton-Flengas方程、Krupkowski方程、作用浓度模型和Hoch-Arpshofen模型)的比较表明:局部组成型模型同样是优秀的,甚至在某些方面更为简便和可靠。
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This thesis uses DEA to compare the WANO's performance indicators among three nuclear power plants in Taiwan. We take the past 7 years'(1997-2003) data of 3 plants, there are 21 DMUs totally. Due to the importance of the nuclear power plant safety performance , we adopt the output estimation by assuming the input as a constant; Five outputs parameters such as unit capability factor, unplaned automatic scrams are chosen to proceed the comparison and get the relative efficiency. We also collect the WANO performance indicators data of the same type nuclear power plants as Taiwan in the United State during 1999-2003 to proceed the same comparison with the domestic three nuclear power plants , in order to understand the relative efficiency between two groups.
本文系利用数据包络分析法,针对台湾地区三座核能电厂之世界核能协会绩效指标的实绩进行实证比较,研究对象是以这三座电厂过去七年(1997--2003)来的实绩比较,每一年度为一个评估单位,共有21个DMUs,由於核能电厂安全绩效之重要性甚高,故本研究纯粹以产出项为考量的绩效评比方式,故将投入项设为常数;产出项则选取机组容量因数、非计划自动急停次数等五项参数,进行评比求出其相对效率;另外也收集了1999—2003年美国同型电厂之WANO绩效指标实绩进行比较,以了解国本国三座核能电厂相较於美国电厂之相对效率为何?
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The experiment studied the effects of applying different amount of B and Zn to peanuts growth, development and yield. The results showed that by supplying rational micro-fertilizer of Boron and zinc, the growth and development of the first pair cotyledonary branch, root nodules leaves and pods could be promoted, the yield was significantly increased on the basis of supplying rational Nitrogen, Phosphorus and Potassium. In this experiment, supplying Boron 7.5 kg/hm^2 and 11.25 kg/hm^2 could increase by 6.87% and 8.19% in comparison with CK, supplying Zinc 7.5 kg/hm^2 and 11.25 kg/hm^2 could increase by 7.17% and 5.20% in comparison with CK.
采用大田试验研究了增施不同量硼、锌微肥对花生生长发育和产量的影响,结果表明,在合理施用氮、磷、钾肥的基础上,适量配合施用硼、锌微肥可以明显促进花生一生的生长发育,增加花生第一对侧枝长、单株根瘤、叶片和荚果数等,显著提高花生产量,其中增施硼肥7.5和11.25 kg/hm^2的处理比较对照分别增产6.87和8.19%,增施锌肥7.5和11.25 kg/hm^2的处理比较对照分别增产7.17和5.20%。
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The research methods adopted in the article include:a historical and comparative method is used while tracing the history of mortgage;combing theory with practice to raise problems, expounding the research object and target in consideration of practice, furthermore, making use of method of comparison and reasoning to analyze legal character of expective right and striving for smooth and compactness of legal reasoning and tight system;and adopting the method of combing theory with practice and the way of comparison to solve the problem , focusing on feasibility of the method,with an expectation to make the commercial housing mortgage clear and comprehensive to the public, and hope that this will be of some help to our legis
本文采用的研究方法:对于按揭的历史渊源问题,采用了历史的、比较的方法;对于问题的提出,采用了理论与实践相结合的方法,从实践活动的需要出发,对本文的研究对象和目的作出阐述;对于期待权的法律性质分析,采用了比较和推理分析的研究方法,力求法理通畅和严谨,注重体系的严密;对于解决问题的途径设计,采用了理论联系实际的方法,注重可行性,以期对我国的楼花按揭制度有比较全面和清晰的认识,同时也希望对我国的物权立法有所帮助。
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Which, in comparison to rival products, greatly decrease s loss of performance at high altitude.
与当时代的同类产品相比,该型号的飞机发动机大大减少了高海拔给飞机带来的性能上的折扣。
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In comparison to the Asian Elephant, the African Elephant has got 2 finger tips whereas the Asian Elephant has got only one.
与亚洲象相比,非洲象有两个指状突,而亚洲象只有一个。
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Relative dating assesses the age of a specimen in comparison to other specimens .
一种是测定相对年龄,通过与其他的样品的比较来确定待测样品的年龄。
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Foil. There were no differences between the cell viability measured as growth rates of aliquots of the refrigerated cultures, in comparison to that measured before cold storage.
当采用生长速率倍数测量冷却培育前后的细胞活力,两者没有区别。
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Result In comparison to reliabilities of the German version, differences can be observed for all knowledge related test forms.
在翻译成中文和进行必要的文化适合性修订以后,于1996年对125名中国飞行学员被试样本进行了测试。
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In comparison to similar helicopters, the SparrowHawk APV has superior performance and much lower acquisition and operation costs.
相较於同级直升机,松雀鹰型旋翼机更为安全,性能较高,并且营运费用远低於直升机。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力