定义了一种不完备信息系统的上、下近似算子，得到了一些相关的性质。
The upper approximation and the lower approximation operators are defined in incomplete information system. Furthermore, some related properties are discussed.
讨论了利用模糊集的下近似和上近似定义的模糊测度和概率模糊测度的关系。
We discuss the relation between fuzzy measure defined by lower approximation and upper approximation of fuzzy set and probability fuzzy measures.
用基于随机集的上粗相等、下粗相等来表示随机上近似算子、随机下近似算子。
The upper rough equal, the lower rough equal based on the random sets are used to express upper approximation operators and the lower approximation operators based on the random sets.
这是为了在室内条件下近似如何对一个人的皮肤感觉，但它并没有达到预期的准确。
It was meant to approximate how the indoor conditions feel on a person's skin but it wasn't as accurate as hoped.
讨论随机模糊下近似、上近似集的模糊概率与模糊信任测度、模糊似然测度之间的关系。
The relationship between fuzzy probability defined by lower approximation and upper approximation of random fuzzy sets and fuzzy belief measures, fuzzy plausibility measures is discussed.
最后，给出一个新的粗糙度定义，并证明在这种定义下，下近似具有与上近似一样的不等式及其充分条件。
At last, a new definition of the rough degree is defined, and lower approximation has the same inequality and the same sufficient condition as upper approximation with the new definition.
定义了决策表在优势关系下的相容约简和下近似约简，优势关系下的相容约简是优势关系下一致决策表约简的推广。
Much valuable but hidden information can be discovered from decision tables associated with compatible reduction and lower approximation reduction based on dominance relation.
定义了非对称相似关系的近似集概念，提出了一种利用非对称相似关系下近似集和属性值对的基于粗糙集的确定规则推理算法。
In this paper, the concept of non-symmetric similarity relation had been used to formulate a new definition of approximation to an incomplete information system.
在程度粗糙集和变精度粗糙集的基础上，通过引入误差参数，给出了一种新的程度变精度粗糙集模型并得出了所给模型上、下近似的一些性质。
In this paper, a degree-variable precision rough set model based on variable precision rough set and the degree of rough set is proposed by introducing a concept of error parameters.
对低马赫数叶轮离散噪声的机理及计算方法进行了研究，并推导了离散噪声的声压计算式、低马赫数下近似计算式和轴心线上的计算式，还实验验证了计算模型。
Research is carried out on the discrete noise theory and calculation method, the calculation model of discrete noise and the approximate formula under small Mach number are verified by experiments.
这些动物是在尽量近似自然的环境下饲养的。
The animals were reared in conditions which approximated the wild as closely as possible.
但是事实上它就是，如果你考虑一下的话，就是在给定点上的，最好的近似曲面的平面。
But, it's really, if you think about it, you will see it's really the plane that's approximating the surface in the best way that you can at this given point.
在这个情况下是泰勒近似，如果我没记错的话。
Which in this case was Taylor's approximation, if I remember right.
所以我匆忙地写了篇论文，给出一阶近似解并指出至少在这个精确度下，理论和实验结构都相符合。
So I hastily wrote up a paper giving the first order of approximation and showing that to that accuracy, at any rate, we had agreement between the theory and observation.
天文学家曾经假设它们总是像其它银河系引力束缚下更小的卫星星系的星云一样，在它们目前近似地距离上围绕银河系的轨道运行。
Astronomers once assumed they had always orbited the Milky way at approximately their current distances, like the other, lesser satellite galaxies in the Milky way's gravitational thrall.
随后我们提出了求解这类概率约束随机规划的一种近似算法，并在一定的条件下证明了算法的收敛性。
And then, we present an approximation method for solving this probabilistic constrained stochastic programming, and prove certain convergence of the method under some conditions.
发现在旁轴近似下，匹配函数的最大值随泵浦光发散角的增大而增大，在考虑到像散的影响后，得到泵浦光发散角的参考值。
At paraxial approximation the maximum of the matching function is increasing with increased divergence Angle. For different brightness of pumping light, the optimum value of the Angle is obtained.
最后，在不同负荷的情形下，负荷与其对应电价的均值、标准差之间存在着一种近似的线性关系。
At last, the relations of load with average and root mean square of corresponding LMPs are approximately linearity in different load situations.
然而，在苛刻光照条件下，这种近似的误差往往比较大，以至于很难恢复出反射率信息。
However, the approximation error can be large under harsh lighting conditions, thus making it difficult to recover albedo information.
本文讨论了粒度意义下的粗糙集近似，并定义了动态粒度下的正向近似。
In this paper, we discuss rough set approximation under granulation, and establish positive approximation under dynamic granulation.
利用光线追踪方法在近轴近似下模拟了高斯光束在不同折射率分布纤维状介质中的传播。
In this paper, it is analyzed the propagation of a Gaussian beam in fiber media with ray tracing under the paraxial approximation.
数值结果表明，在先验知识满足的条件下，近似最优参数法所找到的正则化参数是对最优正则化参数的较合理近似。
Numerical results show that 'near optimal' parameter can be considered as an acceptable approximation of optimal regularization parameter with available priori information.
在二粒子集团近似下导出了分子取向分布函数所满足的方程，并用迭代方法求解。
The equation of the molecular orientational distribution function was obtained by two-particle cluster approximation and solved by an iterative method.
由于导电高分子是宽能带体系；对于该体系来说，紧束缚近似下的SSH模型是过于粗糙的。
As conducting polymers belong to the system of wide energy band, the SSH model in a state of tight-binding approximation is too crude.
本文扼要阐述了在库仑波玻恩近似下，电子与离子碰撞激发截面的理论推导。
This paper briefly describes the theoretical deduction of the cross section of electron -ion impact excitation in Coulomb -born approximation.
当代码被编译或者解释运行时，“0.1”已经被近似转化为这种形式下最接近的一个浮点数，这导致在计算还没有真正开始之前，一个微小的舍入误差就已经存在了。
When the code is compiled or interpreted, your "0.1" is already rounded to the nearest number in that format, which results in a small rounding error even before the calculation happens.
在短时和长时近似下，得到了解析表达式。
Analytical expressions are obtained on short time and long time approximations.
混凝土的徐变包括低应力水平下的近似线性徐变和高应力水平下的非线性徐变。
Creep of concrete consists of approximate linear creep at the level of low stress and nonlinear creep at the level of high stress.
混凝土的徐变包括低应力水平下的近似线性徐变和高应力水平下的非线性徐变。
Creep of concrete consists of approximate linear creep at the level of low stress and nonlinear creep at the level of high stress.
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