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The launching direction and journey length of energy bind in calcula ting the radiation heat transferring in tubular heater by method of Monte-Carlo are analysed. According to the directioncosine formula in hexahedron tubular hea ter,the direction cosine of energy bind in inclined and symmetry tubular heater is stuided.

分析了用蒙特卡罗法计算加热炉辐射传热时能束的发射方向和行程长度，根据六面体加热炉中能束的方向余弦公式，对斜顶对称加热炉中发射能束的方向余弦进行了研究，得到了其修正公式，对斜顶壁面相交坐标进行了修正。

The surface generated by a straight line intersecting and moving along a closed plane curve, the directrix, while remaining parallel to a fixed straight line that is not on or parallel to the plane of the directrix.

柱面一条直线与一个封闭的平面曲线相交及沿着平面曲线移动所形成的平面，准线则与一个不在此准线平面上或者不与此准线平面平行的固定直线保持平行

The main objective of this dissertation was to develop methodologies with capability of engineering application for simulating flow in fractured rock using discontinuum models. The study work includes three parts. In the first part, numerical methodology of three-dimensional discrete fracture network model casing on hybrid BEM-channel was presented, and the technique for improve the model's computing efficiency was also studied. Firstly in this part, computer simulation methodology based on the Baechermodel for generating network of discrete fractures was presented, which includes the follow details: probability distributions of fracture density,orientation, trace length, size, and aperture and estimation of their statistical parameters; stochastic models of fracture network; Monte-Carlo's simulation method; numerical simulation procedure and technicality.

给出了离散裂隙网络模型所依据的基本假定；发展了基于Baecher模型的离散裂隙网络计算机随机生成技术：详细地推导了单裂隙渗流和多裂隙相交网络渗流的边界单元法公式，发展了离散裂隙网络中稳态渗流的边界元数值技术，并且讨论了相关的具体数值技术细节，如角点的处理方法，单元的自动剖分等：描述了混合边界元—管流模拟方法及其数值实现；研究了裂隙网络的简化方法，并针对裂隙网络边界元法的特点提出了一种改进的分块三角分解法。

We present the Maximum Disjoint Sets for Maintaining Coverage and Connectivity problem, and we prove it is NP-complete.

在这一章节中我们将介绍保证覆盖和连同的最大化不相交节点结合问题，同时我们证明这个问题是NP完全的。

Hierarchical clustering of multivariate data or distance data; disjoint clustering of large data sets; nonparametric clustering with hypothesis tests for the number of clusters.

聚类多元数据或距离数据；大型数据集不相交的聚类；与集群的若干非参数假设检验集群。

The performance function was decomposed into disjoint sets of variables to address the combinatorial explosion challenge caused by configuration variations.

该方法通过將性能函数分解为互不相交的变量子集，解决了因配置多样性產生的组合问题。

It is found that loop-carried flow dependencies form a set of disjoint linear ordered sets, and that there is one and only one basis that is independent and inclusive, making unnecessary all the other dependencies.

利用这一性质，围绕着包含这一概念，该文为VLIW结构上的流相关分析提出了一个完整的娄学模型，发现体间流相关集合可划分为若干不相交的线序集合，存在且仅存在一个独立的、全包含的流相关集合，使其他所有流相关都不必要。

We propose an efficient method toextend the network lifetime by splitting the sensor nodes into a maximal number of disjoint sets which are activated successively.

我们提出一种有效的方式来延长网络寿命，这种方式将传感器节点以最大程度分成不相交的集合，每个集合中的传感器节点轮流启动监视目标节点。

In statistical inferences,somtimes we deal with such problems:the numberof obersavations falling in some disjoint sets is known,but no individual valuesof the observations are recorded.we call such observations the grouped sam-ples.

在统计推断中，我们有时会得到这样的数据：数据的具体值未知，但是知道数据落入一些不相交区域中的个数，我们称这样的数据为分组数据。

If k = 2 and the graph G corresponding to the wireless sensor network is (l+ max{1,l-4})-connected, or k≥3 and G is l(k-1 + 1-connected, then we can find k disjoint sets each of which completely covers all the targets and remains connected to one of sinks.

当k=2并且网络所对应的图G是(l+max{1，1-4})连通的，或者当k≥3并且G是l(k-1+1连通时，我们能够肯定找到k个不相交的节点集合，每个集合中的节点能够完全覆(来源：ABC929c92论文网www.abclunwen.com)盖所有的目标，并且与网关节点连通。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。