查询词典 natural boundary

Heat transfer ; natural convection ; boundary layer

传热；自然对流；边界层

Because the method employs the technique along the characteristics to discretize the convective term and it is unnecessary to determine the boundary condition of the vortex ahead of time, it is very convenient to solve the Navier-Stokes equation and natural convection problem.

该方法对对流项仍采用沿特征线离散技术，并且不需要事先确定漩涡度的边界条件，从而可以方便地求解流函数-漩涡度形式的Navier-Stokes方程及自然对流问题。

Use the cubic function to be the displacement funtion, then base on the energy variation principle, the natural vibration equation is derived, which considers the pressure force and the boundary conditions of the compressed bar.

采用三次函数作为压杆单元的位移函数，基于能量变分原理，构造了一种可以考虑初始内力及边界条件的压杆单元。

The closed-form natural mode satisfies the governing equation of the eigenvalue problem of thin plate exactly and is applicable for any types of boundary conditions.

该模态函数精确满足特征值控制微分方程，并适用于任何边界条件。

The effects of variable properties on flow and heat transfer were also studied. 1. SIMPLEC algorithm was used to simulate the laminar natural convection flow in horizontal concentric annuli with the assumption of constant properties. Numerical studies range are as follows: Ra〓 number 100～10〓, radius ratio 1. 2～10.Velocity and temperature distribution profile and the heat transfer result were derived. The comparison of heat transfer results under the boundary condition of constant heat flux and constant wall temperature was also made.

对水平同心套管内层流自然对流采用SIMPLEC算法进行了数值模拟，在〓，半径比1.2～10范围内使用定物性假设进行了计算，得到有关温度和速度的分布以及相应的换热结果，并比较了内壁面分别处于定热流和定壁温条件下换热结果的差异，根据换热计算的结果整理并拟合有关的换热关联式。

This paper disertation explores on modeling and automatic recognition of NP in Russian sentences in light of Natural Language Processing, including linguistic foundation in the course of modeling, modeling of NP, multilevel description of models, modeling of AP with patulous components and automatic recognition of NP. In the process of recognition attention is paid to theoretic precondition of automatic recognition of NP, combinational rules of models, boundary mensuration of NP, automatic recognition of NP with postpositive attributes.

本文从自然语言处理的角度研究俄语中NP构句块的模式化和自动识别问题，内容涉及NP构句块模式化的语言学基础、NP构句块的模式化及模式的多层级、多平面形式化描写(包括带有扩展模式形容词的模式化)、NP构句块自动化处理，包括NP构句块处理的理论前提、模式组配规则、NP构句块的边界测定、带后置定语的NP构句块识别等。

The underwater enclosure was built along the boundary of target water body and the lake bottom sludge was filled into the enclosure by twisting-suction dredging ship according to designing elevation for the purpose of formation of slope riffle, which will improve natural condition of littoral zone of lake, and create favorable habitation condition for ecological restoration in littoral zone of lake.

文章介绍最新开发的湖滨陡坎沿岸水域基底修复技术，主要采用人工方法在需要进行大型水生植物群落恢复的湖滨陡坎沿岸的水域实施基底修复工程措施，在目标水域边界构筑水下围埝，采用绞吸式挖泥船将疏浚的湖泥按设计高程要求吹填至基底修复工程区内，形成缓坡浅滩，改善湖泊沿岸带自然条件，为湖泊沿岸带生态修复创造良好的生境条件。

The boundary line between the natural and supernatural Gan Eden is hardly perceptible in Talmudic literature.

边界线之间的自然和超自然甘伊甸园，是很难感觉到的，在talmudic文学。

The gas spill angles in the present experiment are 0°, 45° and 90°. The densimetric Froude number are 8, 10, 12, and 15. The terrain parameter are urban type and rural type natural turbulent boundary layers, respectively.

实验选择之溢漏角度为水平排放、45°角排放及垂直排放，密度福禄数为8 、10、12与15，迫近流场用的地形条件为乡村与都市地形。

However, Post-Modernism itself hasn't combined form and perfectly. Ultimately, it is resulted from natural defect caused by garbling and compromise. The style turns into "Decoratedshed" which faded away in 90th. However, I believe that Post-Modernism is comparatively acceptable in boundary science such as relationship among architecture, human beings and nature, and also on the topic of urban development.

但后现代主义自身也并未真正解决形式与功能的所谓完美结合，究其根本，我认为是在于其形式感上的断章取义和不得已的折衷理论所造成的天生缺陷，其风格变成了&一张装饰的皮&（Decoratedshed《历史主义不是一种类型》波菲罗斯）因此在90年代终于衰退，但是我觉得后现代主义在一些边缘科学如建筑、人、自然的关系、城市文脉等议题上的研究是相当可取的。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。