1) distributed mass model
分布质量模型
1.
The presented mathematic model is based on distributed mass model, so a lot of influence factors can be considered synthetically, and the obtained dynamic characteristics of turbogenerator set are more closely to the practical cond.
该方程组是基于分布质量模型的耦合振动数学模型,它能综合考虑机组诸多因素,比较接近实际地研究机组动力特性。
2) mass distribution model
质量分布模型
1.
By analyzing factors of creation and decay of mass of the space debris before 1999 and of its evolution in the following time, a mass distribution model is developed.
通过分析 1999年以前空间环境中碎片产生、衰减及在未来时间中的演化因素 ,建立了质量分布模型 ,并利用可得到的碎片数据进行了仿真研究 ,所得结果可供有关研究人员参
3) resource distribution model
储量分布模型
1.
After statistics and studies on known 599 gold deposits (occurrences, mineralizing spots) in the Gansu Province, grade-model, the combined grade-resource model and the resource distribution model of rock gold deposits are established.
对甘肃省已发现599处金矿床(点、矿化点)资料的统计、研究,建立了甘肃省岩金矿品位模型、品位-储量联合模型及储量分布模型。
4) energy distribution model
能量分布模型
5) traffic distributing model
交通量分布模型
1.
The traffic problem is a problem that people are always concerned In this pap er ,a analysis of traffic stream conservation model is made At the same time , the impact the changes of red and green lamp on vehicle stream is discussed Finally, traffic distributing model is buil
最后 ,运用最大熵原理建立了交通量分布模
6) quality distribution
质量分布
1.
For in-depth understanding of the flotation behavior of each size fraction to improve its performance, series screen analyses were taken on products from laboratory flotation tests, the quality distribution of each size fraction assessed, and effective measures proposed for enhancement.
老屋基选煤厂浮选入料的可浮性属极难浮等级 ,为深入了解各粒级的浮选行为 ,对实验室浮选试验的产物进行系列筛分试验 ,分析了各粒级的质量分布情况 ,提出了改善浮选效果的措施。
2.
As preparation, the authors gave a proof of the method to construct quality distribution which was often used but not be proved.
并在准备工作中证明了一种常用但未证明的质量分布的构造方法。
补充资料:裂变产物的质量分布
原子核裂变产生的裂变产物核素的质量数与其在裂变中生成几率的关系,又称裂变产物按质量分布的产额。通常用链产额(Y)与质量数(A)的关系来绘制质量分布曲线(见裂变产额)。附图是热中子引起铀235裂变的质量分布曲线,具有双峰的结构。
裂变产物的质量分布与裂变核的种类、激发能和入射粒子的能量有关。原子序数 Z≤80的核素的产物质量呈对称分布,称对称裂变;Z≥100的核素也主要发生对称裂变;对于90≤Z≤98核素的自发裂变或低激发能的诱发裂变,产物质量呈非对称性分布,称非对称裂变。随着入射粒子的能量或裂变核素激发能的增高,对称裂变的几率增大,在质量分布上表现为两峰间的谷深变浅,甚至有三峰结构出现。
参考书目
H.O.Denschlag,et al.,Physics and Chemistry of Fission 1979, Vol.2,p.155,IAEA, Vienna, 1980.
裂变产物的质量分布与裂变核的种类、激发能和入射粒子的能量有关。原子序数 Z≤80的核素的产物质量呈对称分布,称对称裂变;Z≥100的核素也主要发生对称裂变;对于90≤Z≤98核素的自发裂变或低激发能的诱发裂变,产物质量呈非对称性分布,称非对称裂变。随着入射粒子的能量或裂变核素激发能的增高,对称裂变的几率增大,在质量分布上表现为两峰间的谷深变浅,甚至有三峰结构出现。
参考书目
H.O.Denschlag,et al.,Physics and Chemistry of Fission 1979, Vol.2,p.155,IAEA, Vienna, 1980.
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