比如说，有些模型假设种群规模永远不变。
For example, some models assume that population size never changes.
主要研究模型假设的合理性和自变量的选择。
It mainly researches the rationality of regression model and the independent variables selection.
给出了主要的模型假设、分析方法和数学模型。
Main hypotheses, analytical methods and the mathematical model were presented.
这个模型假设，无论是劳力市场还是消费品市场，都不存在垄断。
The model assumes the absence of a monopoly, both in the labor and economic markets.
这个模型假设，无论是劳力市场还是消费品市场，都不存在垄断。
The model assumes the absence of a monopoly both in the labor and economic markets.
2005年，他的经济模型假设消费者将他们的抵押贷款精打细算。
In 2005, he economic models assume consumers will make careful calculations about their mortgages.
该方案在离散对数问题和随机预言模型假设下是安全的。
The scheme is secure under the assumption of the intractability of logarithm problems and the random oracle model.
初期模型假设一个国家的经济收入每增加1%，赤贫人数就减少2%。
Early models assumed that extreme poverty in any country would fall by 2% for every 1% increase in its income.
该模型假设孔隙表面亲水，各种尺寸的孔隙都对束缚水总量有贡献。
A model is used to assume that pore surface is water wet, and all size of pore has contribution to the total number of bound water.
粗集数据分析不同于其它知识发现方法，特别在模型假设方面的一种方法。
Rough set data analysis in the knowledge discovery in database (KDD) is different to other KDD methods, especially with respect to model assumption.
为详细说明力学的一个杠杆收购交易，见图示2，模型假设性买断的情况。
For a detailed illustration of the mechanics of an LBO transaction, see Exhibit 2, which models a hypothetical buyout scenario.
接着提出了一个用户业务模型假设，讨论了同轴电缆网信道的动态分配问题。
One subscriber traffic model and dynamic channel allocation policy in coaxial networks is discussed.
第一个模型假设每个测试用例有相同的故障检测能力，能获得相同的故障覆盖率；
The first model supposes every test case has equal fault detective ability and can get the same fault coverage.
本文用到的方法对于在合理的模型假设下解决手写字符识别问题呈现了很大的潜力。
The proposed approach in this paper offers a great potential for solving difficult handwriting character recognition problems under reasonable assumptions.
模型假设凝胶是以凝胶组分及凝胶吸收的溶液为核心，以弹性半渗透膜为壳的复合体。
In the model, gel is considered as a combination of a shell of an elastic semipermeable membrane and a core of a fluid phase.
在低温热水地板辐射供暖系统的计算中，原用的平面肋片模型假设地板的温度场是一维的。
Original plane fin model of calculation for heat dissipating capacity in low-temperature hot water floor radiation heating system was hypothesized one-dimensional temperature field in floor.
因此，经济批量模型假设的前提条件并不完全成立，经济订货批量的计算公式也就需要改进。
Therefore, suppose the presupposition of economic batch quantity model not to be completely established, its calculating formula shall be needed to be modified.
该模型假设FDI的流入会通过直接和间接的溢出效应对产业的技术创新绩效产生正向影响；
This model hypothesizes FDI inflow has positive influence on the industrial technological innovation performance through direct and indirect spillover effect.
在给定满足模型假设条件的参数下对模型进行了求解与分析，并求出了模型的关税谈判均衡解。
Based on the given parameters satisfied the hypothesis of the model, the model is solved and analyzed, and the equilibrium solution about on the tariff negotiation is obtained.
在数学建模过程中，模型假设与模型建立是最重要的两个步骤，两者构成机理分析的重要环节。
Model hypothesis and model foundation are the two most important steps in the process of mathematical modeling, and they comprise two important parts of principle analysis.
针对树木模型提出正向光线跟踪的辐射传输模型，并详细阐述了模型假设、处理流程与主要算法。
A radiation transfer model is proposed for tree model based on forward ray tracing. The model hypothesis, processing flow and primary algorithm are expounded.
比如，我们的模型假设，简单的管状羽毛先于羽枝的演化，因为羽枝是由管子分化出羽枝脊才产生的。
The model hypothesizes, for example, that a simple tubular feather preceded the evolution of barbs because barbs are created by the differentiation of the tube into barb ridges.
在定性研究之后，本文便根据我国近期国债收益率曲线的形态特征，对我国国债收益率方程进行了模型假设。
After the positive study, this paper supposes the models to the yield equation of government bonds according to the form characteristic lately of the yield curve of government bonds in our country.
但是这一模型假设极端价格波动的概率是可忽略的，而在现实当中，股票价格的剧烈波动远比假设的情形要频繁。
But it assumes that the probability of extreme price changes is negligible, when in reality, stock prices are much jerkier than this.
在一些模型假设的基础上，建立了目标函数为最小化运距的客户订单合成配送问题的数学模型，提出并实现了解决该问题的遗传算法。
A mathematical model of customer order consolidation delivery problem is introduced based on some model hypothesis, in which the objective is to minimize the transportation distance.
关联假设是一类模型假设，它既可以用来定义模型片断本身，也可以定义有关模型片断使用的决策信息，将模型库与建模任务联系起来。
Relevance assumption is one kind of modeling assumption that can be used to define model fragments themselves as well as decision informations definition about management of model fragments.
为了使计算机也能进行计算，大多数模型要么假设海洋是一个静止的沼泽，要么假设它们根本不存在。
To make calculations manageable even by computers, most of the models suppose either that the oceans are a motionless swamp or that they don't exist at all.
这里假设每个模型和版本都存在相应的配置。
The assumption is that a configuration exists for each model and version.
这里假设每个模型和版本都存在相应的配置。
The assumption is that a configuration exists for each model and version.
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