sand grain
英 [sænd ɡreɪn]
美 [sænd ɡreɪn]
砂粒
双语例句
- If we could actually see the path described by a particle, such as a sand grain in the rock.
假如我们真能看到诸如岩石中一个沙粒子的运动轨迹。 - Home village all the sand grain rice to wuxi, about nine drink, meet the wood more attract him to act as the village of three.
沙家寨众人运米粮到无锡后，约柴九见面喝酒，更招徕他到寨中担任三当家。 - Such as a sand grain in the rock, an instrument that records the tracks of ionizing particles.
诸如岩石中一个沙粒分子的运动轨迹，记录离子粒运动轨迹的装置。 - Let it become the most concealment sand grain in our heart bottom.
让它成为我们心底最为隐蔽的沙粒。 - The results show that because of the effect of account of vertical fluctuating velocity, the trajectories of sand grain involving the effect are differ obviously from that not involving the effect.
结果表明，由于沙粒垂向脉动速度的影响，沙粒的轨迹与不考虑其垂向脉动速度的情形存在明显不同。 - Simultaneously, it also discusses the composition of mud accumulation, the relationship between the size of sand grain and velocity and how to decide appropriate minimum velocity.
并且阐述了淤积污泥的组成，以及泥沙颗粒大小的与流速的关系，确定合适的最小流速。 - Otherwise there will be a large error between the value calculated by Stokes formula and the actual value under the condition of bigger sand grain and lower fluid viscosity.
当砂粒较大、液体粘度较小时，用斯托克斯公式得出的计算值与实际值相差很大。 - These results are available to calculate the critical sand transportation velocity of no silting in vertical well bore of low sand grain concentration and can be referred to solve the sand transportation difficulties of vertical well bore in other areas.
研究成果可用于计算垂直井筒内低浓度砂粒无淤塞的最低携砂流速，对于解决其他地质区块和微小颗粒的垂直井筒携砂问题具有借鉴意义。 - By analysis of sand grain size in sediment microenvironment of modern rivers, the size and shape of grain and surface texture feature of quartz grain were described in this paper.
本文根据现代河流的已知沉积微环境中的砂样分析，阐述了河北平原河流沉积物的粒度成分、形态和石英颗粒的表面结构特征。 - The paper describes influence, importance and requirements of sand grain composition and its control methods in the sand-lime brick production.
本文综合论述灰砂砖生产中砂子颗粒级配的影响、要求和重要作用以及应当进行控制的工艺环节和措施。 - Influence of sand grain shapes on dry density of sediment
沙粒形状对泥沙干密度影响初探 - In the process of fracturing, sand control and sand washing, settling rules of sand grain in the liquid should be studied, thereby to determine the minimum flow rate and other operation parameters in order to prevent sand deposit at the downhole.
在压裂、防砂及冲砂过程中，为防止砂粒在井筒底部沉积，需研究砂粒在液体中的沉降规律，从而确定最低排量等施工参数。 - Under the similar conditions of wind speed and sand grain size, the increase of the index A suggests the increase of the trap efficiencies.
在风速和沙粒粒径相似的条件下，集沙效率指标值越大，对应的集沙效率也越高。 - Research and application of sand grain matching of artificial rock
人工岩样的砂粒配比研究及应用 - Study of Impact of Dead Leaves of Forest on Surface Water and Sand Grain Movement Conditions
森林枯落物阻滞地表径流和影响砂粒水力起动条件研究 - The threshold velocity of sand is influenced by many factors in coastal zone, but the grain diameter and moisture content of sand grain are the dominant factors.
在海岸带，沙粒粒径和水分含量是决定沙粒起动风速的最主要因素。 - As a result, the motion of the sand grain is restricted. Also the film can control the diffusion rate of H+ further in order to retard the reaction rate and make the surface viscous acid reach the formation far away.
该膜可以进一步控制H+的扩散速度，达到进一步缓速目的，保证表面稠化酸酸化深远地层。 - The equilibrium sand transport is simulated by Lagrange model combined with the probabilistic distributions of initial speed and angle of ejection sand grain in this paper.
本文用Lagrange方法结合起跳沙粒初始运动状态分布模拟了稳态风沙输运过程。 - It is very important to pay attention to sand grain composition in the sand-lime brick production
在灰砂砖生产中必须特别重视砂子的颗粒级配 - A formula was derived to calculate the dry density of uniform sand with a new method based on establishment of an analysis mode, and the effect of sand grain shape on the dry density of sediment was discussed by introduction of the form index.
在建立分析模式的基础上，采用一种新的方法建立了均匀沙理论干密度的计算公式，并引进形状指数，讨论了沙粒形状对泥沙干密度的影响。 - Settling rules under different conditions are verified experimentally by different types of fluid and sand with different grain diameters.
用不同类型的液体及不同粒径的砂粒对不同情况下沉降规律进行了实验验证。 - The fluorocarbon resin emulsion sand texture paint with excellent performance was prepared using synthesized fluorocarbon resin emulsion as binding agent, and sand grain, fine stone particle and stone powder as aggregate, selecting proper aggregate grading, aggregate/ base material ratio and various additives.
采用合成氟树脂乳液为粘结剂，以砂粒、石材微粒和石粉为骨料，通过选择适当的骨料级配、骨料/基料比以及各种助剂等，制成了性能优异的氟树脂乳液砂壁状建筑涂料。 - Prevention Measure Of Air Bladder And Sand Grain At Concrete Surface Of Railroad Bridge
铁路桥梁混凝土表面气泡和砂纹的防治措施 - Also, with the mid-term datum rising, the braided river channel sand body is thickened, the sand grain size is getting coarser, with sand-shale ratio increasing.
同时认为，储集层物性随着中期基准面的上升，辫状河道沉积砂体变厚、粒级变粗、砂泥比增大； - Effect of Sand Grain Size and Grain Size Distribution on Glass Melting
砂岩颗粒度对玻璃熔制的影响 - In this paper, we considered borehole and strata as one whole, utilized hydrodynamic principle in borehole and sand grain particle movement theory to get the optimum sand washing flow rate and sand washing pressure of waterpower sand washing.
文中将井筒和地层作为一个整体来进行考虑，利用井筒中流体动力学原理和砂粒质点运动原理，得到水力冲砂的最优冲砂液流量和冲砂液压力。 - Soft soil has high clay particle and clay powder contents, while the sand grain content is very low.
软土粘粒和粉粒含量较高，砂粒含量非常低。