1) spherical crown
球冠
1.
Introduce a try to grind precision spherical crown, including its principle and method, discuss the possible tolerance and give a formula to control the quality.
介绍了为磨削高精度球冠所做的尝试,阐述了所采用的磨削原理、技术方案,讨论了加工误差,推导了控制球面轮廓误差的公式。
2.
After setting up a model and judging from the principle of increase of entropy, we conclude that for a surface-included system which is in spherical crown shape, such as a vapor bubble inliquid or a liquid drop in vapor, only when the height is less than the bottom radius can it remain a stable equilibrium.
通过建立模型 ,根据熵增原理 ,得出结论 ,即对含界面的两相系统 ,例如气体中的液滴或液体中的气泡 ,当其界面是球冠形状时 ,只有当球冠的高度小于球冠半径时 ,系统才能处于稳定的平衡状态 。
2) spherical cap
球冠
1.
The results show that the shape of the wetted zone was spherical cap;the horizontal infiltration distance and the vertical infiltration distance was equality and had the power function relationship with time,they will tend to a fixed value when the infiltration time tend to infinity.
无压灌溉土壤湿润体形状为球冠,径向和垂向最大湿润距离相等且与时间存在显著的幂函数关系,随着时间的延长,径向和垂向最大湿润距离趋于一定值。
3) spherical cap structure
球冠结构
1.
Numerical simulation on welding deformation of spherical cap structure based on ABAQUS;
基于ABAQUS平台对球冠结构焊接变形的数值试验
4) global crown roof
球冠屋盖
1.
Construction technology of cast-in-place global crown roof;
浅析浅圆仓现浇球冠屋盖施工技术
5) spherical corona's area
球冠面积
6) visibility spherical cap
可视球冠
1.
A new concept, visibility spherical cap, was proposed.
首先对LEO卫星的运动特点进行理论分析,引入了"可视球冠"的概念并给出了一些新的计算公式。
补充资料：球冠
球面被一个平面所截得的部分。截得的圆称为球冠的底，垂直于截面的直径被截得的线段长称为球冠的高。球冠也可以看作一段圆弧绕经过它的一个端点的直径旋转所成的曲面。设球冠的高为h,球半径为r,则球冠的面积为s=2πrh。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条