1.Eccentricity Adjustment Method in Measuring Ball Roundness With Y9025 Roundness Meter
Y9025型圆度仪测量钢球圆度时的调偏心方法
2.It advances that the non-lapping envelope region is a major fact of generating roundness errors and inquires into the effects of ball roundness with non-lapping envelope region, preliminary pressure error and lap tool wear.
根据四研具体对球面研磨的包络原理，提出了未包络研磨区是产生残存圆度误差的主要因素，并探讨了未包络研磨区、四研具初始压力误差、研具磨损不均匀性产生的原因和对研磨残存圆度误差的影响及解决措施。
3.When the fluidity of cement mortar keeps at the same level the watercement ratio of the improved particle shape sample decreases 8%, and the compressive strength increases 20% at each age, and degree of roundness raises to 0.72 from 0.67. If the watercement ratio is in the same value, the compressive strength increases 10% to 12% while degree of roundness raises to 0.73 from 0.65.
在相同砂浆流动度下,颗粒形式改善后水泥的圆形系数由0.67提高至0.72,水灰比可减少8%,各龄期水泥抗压强度均提高20%以上。 在相同水灰比下,圆形系数的平均值由0.65提高至0.73,水泥中后期抗压强度平均增长10%～12%。
4.This paper introduces the ball lapping model of spring loading pastle tools for the four shafts ball lapping machine and explains minimizing error mechanism of lapping ball roundness,using the effects of cutting high points and homogennization lapping error.
从建立4 轴球体研磨机弹簧加压球体研磨的力学模型入手，运用高点切削作用机制和误差趋小化效应，解释了球体圆度误差趋小化机理。
5.Taking Sunan mining area as an example, the characteristics of sedimentary faces is obtained by analyzing systematically the topography before sediment, the degrees of roundness, the sizes of sand grains and sources of materials.
摘要以宿南矿区为例，通过对“四含”沉积物沉积前的古地形、沉积物的颗拉大小与磨圆度、物质来源，得出沉积相特徵。
6.The results show that under the same lapping conditions the Si3 N4 ball has the lowest material removal rate and the best roundness and roughness, followed by ZrO2, Al2O3, and SiC ball.
结果表明：在相同的研磨条件下，具有长柱状晶粒的氮化硅陶瓷球加工速率最低，但圆度和表面粗糙度最容易控制；氧化锆和氧化铝陶瓷球表面质量次之，碳化硅陶瓷球加工速率最高，圆度和表面粗糙度最难控制。
7.roundness measurement
圆度测量
8.Non-rotating stem has close roundness and straightness tolerances and is burnished for a superior surface finish.
不旋转阀杆避免了圆度和直度偏差，并且具有相当好的表面光洁度。
9.True Position cannot be changed at grinding only size, roundness and microfinish.
打磨时除尺寸,圆度和微观表面发生变化外,基准位置不变.
10.Roundness is an abstract term, so long as one considers it by itself and separates if from any subject that is round.
“圆”这个字如果单就其本身而言，而不与任何圆形物体相联想时，它是一个抽象名字。
