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。
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 。
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。
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
Construction technology of cast-in-place global crown roof;
浅析浅圆仓现浇球冠屋盖施工技术
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。
a new tennis champion with a mean service
发球刁钻的新网球冠军.
He could not help crowing his head off after defeating the champion of tennis
击败网球冠军，他情不自禁欢呼起来。
Emma’s on her mettle for the tennis championship.
爱玛准备尽最大努力，夺取网球冠军。
The Chicago Bull team won the basketball champion this year.
芝加哥公牛队夺得今年的篮球冠军。
The basketball championship is exciting.
那次篮球冠军赛真激动人心。
Our football team is contending with one from the next town for the championship
我们的足球队正与邻镇的足球队争夺冠军。
He determined to go for the tennis championship this year
他决心要获取今年的网球赛冠军。
I'll always remember lacrosse champions.
我会永远记得曲棍球比赛的冠军们
This championship game is baseball at it's finest.
这场冠军赛是最精彩的一场棒球赛。
John carried off the palm in the tennis championship match.
约翰在网球锦标赛中获得冠军。
sell--oh, don't make a blunder, now, you own the earth!
抛——可别大意，现在你就能财冠全球了
The football team was in high spirits when they left for the championship game.
当这足球队去参加冠军赛时兴高采烈。
Then the two remaining players will face each other for the championship.
最后留下的两名球员将争夺冠军。
The English football team were world champions in 1966.
英格兰足球队是1966年的世界冠军.
The Superbowl is the championship game of American professional football.
这是一场美国职业橄榄球队的冠军赛。
China is back on top of the women's table tennis world.
中国队又成为乒乓球女子世界冠军。
Our team won the championship in the basketball tournament.
我们队在篮球联赛中赢得冠军。
Roger carried off the palm in the table tennis championship match.
罗杰在乒乓球锦标赛中获得冠军。
