查询词典 gravity flow

Key words: gravity separation;equipment structure;flow behavior;residence t ime distribution;particle image velocimeter

关 键 词：重力分离；设备结构；流动特性；停留时间分布；粒子图象测速

His technique combined the movement of his body, over which he had control, the viscous flow of paint, the force of gravity, and the absorption of paint into the canvas.

他的技术结合了他的全身运动，在他所控制，油漆粘性流，在引力的作用，以及油漆吸收到画布上。

The use of the formula for calculating the grain diameter indensimeter method prescribed in "Standard for soil test method" GB/T 50123—1999 is limited to the small global grains with low velocity in a layer flow considering only the viscous resistance and effective gravity.

GB/T50123—1999《土工试验方法标准》中采用密度计法进行颗粒分析时，土粒粒径计算公式是在层流条件下，对低速运动的微小球形颗粒仅考虑介质粘性阻力和有效重力条件下导出的。

In the fan delta plain, the sediments, with relatively large grain sizes, jump forward with the thrust of water flow, while, in the front slope, the sediments have relatively small grain sizes, weltering and depositing a-long the slope under the force of gravity, forming typical normal grain size gradation.

扇三角洲平原以水流推力作用为主，沉积物以滚动、跳跃方式搬运，粒度最粗；前缘斜坡以重力作用为主，沉积物顺坡向下滚动、沉积，粒度略细，且具有明显的正粒序特徵；前扇三角洲以浮力作用为主，沉积物为悬移质沉降，粒度最细。

When a sudden power failure or accident or normal pump stops when the pump stops, the valve inlet water velocity to reduce stress Agency, the valve plate also fall, when its velocity is zero (that is, inlet flow rate is zero Department), large valve plate because of its own gravity and rapidly turn off (time 3s ~ 5s), the majority of water to prevent backflow, when the valve before and after the formation of a water pressure, water stress, on the one hand through the small valve at the bottom of the three slot for pressure relief vent pressure. 4 water stress from the bypass tube into the cavity patch up the control room (this process for the suction pressure chamber that can effectively absorb the energy of water), when water stress on cavity than inferior vena cava, the pressure of water promote the diaphragm down mobile , the current cavity pressure of water being squeezed out all the small valve plate slowly drop back to standby status, the process time to ease closure adjustable (3s ~ 150s), then the valve has been fully closed, watertight.

当突然停电或事故停泵或正常停泵时，阀门进水口处压力水流速降低，大阀板也随之下降，当其流速为零时，大阀板由于自身重力而迅速关闭（时间3s～5s），可防止大部分水倒流，此时阀门前后形成一种水压差，压力水一方面通过小阀板底部的三条泄压槽进行泄压。4）压力水从旁通管进入膜片控制室上腔（此过程为吸压腔，能有效吸收一部分水能量），当上腔压力水大于下腔时，压力水推动膜片往下移动，当下腔压力水全部被挤出来时，小阀板缓缓下降，恢复到待机状态，此过程中缓闭时间可调节（3s～150s），届时阀板已全部关闭，滴水不漏。

Dahuofang water diversion project is a typical case of this kind of engineering. This project is divided into two parts from Anshan pressure station: the up-gravity-force water diversion with double-pipe, and the down-pressure-flow part, which provides water for seven water supply station of six cities, lots of brunches, and full of ups and downs, covering many kinds of boundary conditions of modern engineering.

大伙房输水工程就是其中一个较为典型的工程实例，该工程以鞍山加压站为分界点将整个系统分为两部分，鞍山上游为重力流输水并且有一段为双管运行，鞍山下游为压力流，一共给6个城市7个净水厂供水，多分支，多起伏，几乎包含了当今输水工程中存在的各类边界情况。

The underflow is led direct onto the belt filter by gravity, the overflow is dropped back to the filtrate tank, however a part of its flow is led to the waste water hydro cyclone feed tank.

水力旋流站底流靠重力直接被排放到真空皮带机。

In introducing the basic conceptions of the direct variable method and the dimensionless method, the developing laminar flow with the gravity in plane were solved. Meanwhile, these problems were also calculated in structured meshes and unstructured meshes for numerical solutions.

在介绍直接变量方法与无量纲方法基本概念的基础上，求解有重力作用下的平板流动的各种情况，并在结构化网格与非结构化网格两套程序中进行数值解的计算。

What's more,the three-dimensional velocity,density and pressure distribution of the flow field in the gravity-fed 3-product H.M.cyclone were studied as well,some conclusions were summarized.

通过对无压给料三产品重介质旋流器流场的三维速度、压强、密度和空气柱的数值模拟研究，对无压给料三产品重介质旋流器内的流场有了更深入和细致的了解，得到了几点有意义的结论。

Off-line experimental results in a gravity-fed particles flow apparatus were presented.

在重力输送颗粒流实验装置上进行了初步的实验研究。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。