查询词典 collocation of boundary

The result shows that the erosion presents as incision when the riverbed is relative narrow and deep; To the low-water branching reach with strong boundary conditions where the riverbed is wide and shallow, the scour and deposit variation characteristics mainly presents as erosion and deposition adjustment of river island, height deviation of thalweg in the inlets and the adjustment of split ratio after impoundment To the low-water branching reach where the riverbed is wide and shallow and the lateral boundary conditions are weak, the scour and deposit variation characteristics is not restricted to the adjustment of split ratio, and the pattern of the braided reach may even be changed.

结果表明：当河段相对窄深时，河段冲刷主要为下切；当河段为相对宽浅的低水分汊河段且河岸约束较强时，蓄水以后的冲淤变化主要体现为江心洲滩的冲淤调整、汊道深泓高程差的冲淤调整，并引起主支汊分流比的调整；当河段为较为宽浅的低水分汊河段且河岸约束相对较弱时，则冲刷调整不仅限于分流比的调整，甚至会导致大的分汊格局的调整。

In the Method of Fundamental Solutions, seeding location of the source points on a fictitious boundary off-setting from the real boundary is necessary.

在基本解法数值方法中，为避开奇异性将源点布在离开边界的虚拟边界上是必要的。

The technology of oil flow and silk thread can reflect effect of the vertex generators controlling the boundary layer separation of the wing truly.6 The single hot line doesnt fit for the measure of the three-dimensional boundary layer downstream of the vertex generators, according to the result of the flow visualization.

油流和丝线流动显示技术可真实反映涡流发生器对机翼附面层分离的控制效果。 6根据流动显示结果，指出单丝热线不适合用于涡流发生器下游具有较强_维流动的附面层测量。关键词：涡流发生器，超临界机翼，附面层分离，控制，风洞实验

The study of natural fullerenes is a new area of across fullerene science and geological science. So far natural fullerenes have been found in shungite, fulgurite, carbonaceous conglomerates in impact crater, E/K boundary carbonrich clay rock layer, T/P boundary layer, dinosaur eggshell, coal, heavy crude oil, solid bitumen and socalled seminatural fullerenes in common soots, Chinese ink sticks, commercial char, et al., only with low concentrations.

天然富勒烯研究是富勒烯科学和地质科学相交叉的一个新兴研究领域，迄今为止已在桑加岩、闪电熔岩、陨石撞击坑中的含碳质角砾岩、古近系/白垩系地层界线的含碳粘土岩、三叠系/二叠系界线岩石、恐龙蛋壳、煤、重质油、固体沥青以及半天然的烟灰、木炭、书墨等物质中检测到富勒烯的存在，但含量很低。

Grain boundary slidings happen in this alloy at the creep temperature of 200 ℃ and the deformation of this alloy is coordinated by intragranular slip and grain boundary sliding.

结果表明：在125~200 ℃蠕变温度下，当蠕变寿命接近100 h时，2024铝合金的蠕变应力随着温度的升高明显下降；与125 ℃相比，150 ℃时合金的蠕变应力下降9.3%，在175 ℃时合金的蠕变应力下降30.3%；当蠕变温度为200 ℃时，该合金的蠕变应力下降幅度达到45.8%；在125~175 ℃下，合金在蠕变过程中的变形机制主要为位错在晶内的滑移；在200℃时，合金晶界开始发生滑移，合金变形由晶界滑移与位错在晶内的滑移协调完成；在合金蠕变断面上存在大量微孔，随着蠕变温度的升高，微孔的尺寸明显变大，当微孔尺寸超过3 μm时，微孔对合金的断裂机制有显著影响；在125和150 ℃下，合金的蠕变断口呈现韧窝型穿晶断裂特征；在175和200 ℃下，合金的蠕变断口呈现沿晶断裂特征。

Boundary element method for pressure calculation of arbitrary shape and mixed boundary reservoir

以任意形状二维均质油藏的定解问题为基本的数学模型，推导了实空间和拉氏空间中的边界元数值计算方法。

Finally, to get the exclusive solution of a certain structure, the realization technology of electric and magnetic boundary conditions, as well as the quasi-periodic boundary condition is studied.

最后，对确定的高频结构，为了得到唯一确定的电磁场解，对基于有限积分理论的电边界、磁边界以及周期结构的准周期边界的数值实现技术进行了研究。

By analyzing the results of simulation and experiment, a series of new phenomena were found. There is an inner boundary within the rotational flow field of cyclone. The velocity head is zero on the inner boundary.

通过对仿真结果的分析，并结合试验数据，揭示出一系列新的现象，主要归纳为：旋风分离器内的旋转流场中存在一内边界，其速度头为零。

This article gives an overview of the early development and recent progress of the study of grain boundary relaxation by Chinese scientists, ranging from, the invention of the torsion pendulum for internal friction measurement to the discovery of a critical temperature for the grain boundary relaxation.

后者包括澄清了关于晶界内耗峰来源的争论，揭示了晶界弛豫具有一个临界温度，从而提出了一个适合于各种温度的综合的晶界模型。

Results showes that the suitable quantity tin can not appeared crystal boundary, and RE phase segregation reduced the tendency of intergranuiar corrosion, current efficiency of anode increased recessive quantity tin appearat crystal boundary with Sn phase, and can not improve the performance of aluminum anode. aluminum alloy, saciiiicial anode, electrochemistry performance, microstructure, tin

本文分析锡含量不同的铝基牺牲阳极的金相结构和电化学性能，阐述合金元素锡对晶粒尺寸、第二相数量、主要第二相组成、电化学性能的影响及铝阳极组织与性能的关系，以及电流效率损失的原因。1实验1.1铝合金熔炼 1号、2号和3号铝合金分别为m一5Zn一0.05In—lMg一0.3RE、舢一5Zn—O.05In一0.1sn一1Mg一0.3RE和m一5Z

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。