不粘性

In order to ensure that the connections do not leak, often with the lead oil, hemp, and PTFE wire filled with raw materials; of these raw materials PTFE tape, use growing a wide range; corrosion resistance of this material can be a very good sealing effect a very good, easy use and storage, demolition, you can be completely removed, because it is a layer of non-sticky film, more than lead oil, hemp line is much more superior.

为了确保连接处不漏，往往用铅油、线麻和聚四氟乙烯生料带填充；其中聚四氟乙烯生料带，使用日见广泛；这种材料耐腐蚀性能很好，密封效果极佳，使用和保存方便，拆卸时，可以完整地将其取下，因为它是一层无粘性的薄膜，比铅油、线麻优越得多。

Why do people have the inspiration to make liquid seals ? First of all, no matter how tight you press the solid seals , they can't fill in those uneven places on the joint face, so gap always exists. But liquid seals can fill in the dent and present good sealing function. Meanwhile liquid seals have stickiness so they have adhesive force to metal adjoining planes, which is helpful to seal. Besides the stickiness of liquid seals is high so they will not move easily, which can ensure the leak tightness.

人们之所以会有液体密封件的灵感，首先是考虑到固体密封件无论怎样压紧，也不能完全填满接合面上的凹凸不平，在界面上总会存有间隙，而液态密封件却能将全部凹陷填平，呈现出良好的密封效果；同时，液态密封件具有一定的粘性，对金属接合面具有一定的粘附力，有利于密封，而且液态密封件的粘度是很高的，很难发生流动，从而进一步保证了密封性。

D models are the most widely spread in the world of turbo-machinery for its simplicity, but they are indeed purely empirical correlations which not only fail to provide detailed information inside one or more components, but also require significant effort to recreate themselves if engine operating conditions or component representations change; quasi 3-D models have been the workhorses for compressor and turbine design for many years, and the primary benefit of using quasi 3-D system models is to facilitate the design and detail analysis of a particular component across the range of possible boundary conditions; Full 3-D models are gradually replacing quasi 3-D ones by virtue of requiring no exit flow angle model and loss model and being capable of predicting secondary flow in cascade.

零维模型由于使用时简单易行，因此在涡轮发动机的仿真中得到广泛应用，但零维模型作为纯粹的经验关系式无法反映部件内部的流动细节，并且一旦部件有少许改动则新特性的建立耗费巨大；准三维模型由于能够详细地提供部件内部的流动情况，方便设计而成为涡轮和压气机设计的主要工具；全三维数学模型正逐步取代准三维模型在涡轮设计中的主导作用，同后者相比前者能够预测叶轮机械内的二次流动，在粘性流计算时不需要气流角和损失的经验公式，因此拥有巨大的发展前景。

For highly cohesive sediment, the critical tractive force becomes less significant.

对于高粘性泥沙，临界推移力就成为不重要的。

In this paper, the commercial software FLUENT is used to calculate the viscous flow field around a ship with Twin-skeg, without taking into account the impact of wave-making resistance.

文中利用商业软件FLUENT，在不考虑兴波影响下，对各航速下的双尾船粘性流场进行数值模拟。

The following are main contents studied: A finite element method for Navier-Stokes equation with ALE formulation is considered and by combined with theNewmark method of numerical intergration a pressure correction scheme is obtained for the solution of the FE formulation of N-S equation. Because the incompressibility condition can be satisfied approximately in this scheme, the interpolation functions of elements can be equalorder for the velocity field and pressure field. In the ALE formulation the fluid-solid interaction analysis became a three-field coupling problem of the fluid field, the solid field and the fluid dynamic mesh. The properties and charactiristices of this three-field coupling problem are deeply discussed.

研究的主要内容有：主容器中流体大晃动是一种强非线性问题，文中研究了求解ALE描述的粘性流体N-S方程的有限元方法，以有利于大晃动自由液面的跟踪和流体大晃动中非线性现象的描述；并结合Newmark数值积分法推出了求解ALE型N-S方程的压力修正解法，由于这种解法可以近似满足不可压条件，因此可以采用速度场和压力场等阶插值的有限元离散格式，从而较好地解决了普遍采用的不等阶插值解法中，速度场和压力场数值精度不一致、程序编制不便等的不足。

The application of soil cement is largely extended.

水泥土的应用在我国南方及沿海地区得到广泛的推广，采用水泥土及相关的地基处理方法加固的土质多为淤泥、淤泥质土、地基承载力不大于 120kPa 的粘性土和粉性土。

Running sand and loose gravel of silt,which are practically cohesionless and which cannot be safely and efficiently dug out by ordinary soft-ground tunneling techniques,can be handled by the use of shield,usually working in free air.

运行砾石沙和松散的淤泥，这是几乎无粘性和不能安全，有效地挖掘普通软隧道技术的地面，可以处理由盾牌的使用通常在空气中工作。

Running sand and loose gravel of silt,which are practically cohesionless and which cannot be safely and efficiently dug out by ordinary soft-ground tunneling techniques,can be handled by the use of shield,usually working in free air.

沙子和松散的碎石中运行，这简直是淤泥无粘性和不安全高效地挖出普通soft-ground掘进技术，可以通过使用盾牌，通常在自由的空气。

Situation can be used in accordance with applicable material with scraper ring (clean adhesion surface in the dome of residual materials, for viscous materials) or without scraping ring of the dome valve.

根据适用物料情况可选用带刮圈(清洁粘附在穹体表面的残余物料，用于粘性物料)或不带刮圈的圆顶阀。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。