rounded sand

An improved implementation of Distributed Lagrange multiplier/fictitious domain method was presented and used to simulate the interactions between two circular particles sedimenting in a two-dimensional channel.

　应用改进的拉格朗日乘子/虚拟区域算法对不同大小的两个圆形粒子在二维方槽中的沉降过程和相互作用进行了直接数值模拟,并进行了实验验证·　结果表明不同大小的两个粒子在沉降过程中的相互作用可以描述为追尾、接触、旋转和分离4个过程,只有当两个粒子尺度差异很小时,才会重复进行DKT过程·　在两个粒子相互作用的过程中,小粒子的运动受到大粒子的影响更剧烈一些,而相反大粒子运动包括运动轨迹和速度所受到的影响则相对较小·

The gravel traps are about25 cm deep and filled with spherical gravel stones with diameters of between5 and16 mm in diameter.

沙砾缓冲区大约深25厘米，中间填满了直径在5毫米到16毫米之间的圆形砂石。

Research on Outer Race Elliptical Groove Grinding with Basin-like Grinding Wheel

盆状砂轮磨削钟形壳椭圆沟道的研究

interchangeable conical glass ground joints

化学分析玻璃仪器-互换圆锥形磨砂接头

It contains the deeply dissected Bungle Bungle Range composed of Devonian-age quartz sandstone eroded over a period of20?

这些成行成列的塔形或圆锥形的山峦，由泥盆纪时代的石英砂构成。

3D Profile and Generating Mechanism of Cylindrical Surface Lapping Machined with Abrasive Jet Flow Restricted by Grinding Wheel

砂轮约束磨粒喷射加工外圆表面创成机理及三维形貌

The Fractal Dimension of Cylindrical Surfaces for Abrasive Jet Finishing Restricted by Grinding Wheel

砂轮约束磨粒喷射精密光整加工外圆表面分形维数的研究

internal grinding head

内圆磨(砂轮主轴)头

cymbal form resin bond wheel

圆盘式树脂结合剂砂轮

centerless cylindrical grinding machine with wide grinding wheel

宽砂轮无心外圆磨床

angular wheel slide grinding machine external

斜置砂滑座外圆磨床

extension bar for grinding wheel axle of internal grinding machine

内圆磨床砂轮轴接杆

A cylindrical container or object.

圆柱形容器，圆柱形物体

Circles, stars, hearts and squares.

圆形，星形，心形，和正方形。

Resembling an ellipse in shape;elliptical.

椭圆形的形状类似椭圆的，椭圆的

Moving in or forming a circle.

进入圆内或形成圆的

A rounded protuberance.

圆块，团圆形突出物

something with a round shape like a flat circular plate.

象扁平的圆盘的圆形物。

forming machine for making foundry moulds of sand (excl. sand-jet sprayers)

铸造用砂模成形机（不包括喷砂装置）