The paper put forward principle and object of straight profile circular plane worm's optimization design.
根据提出的直廓环面蜗杆优化设计的原则和目标。
The complex variable method analytic solution of stress is given for the plane elastic stress problem of surrounding rock of shallow circular tunnel under ground load.
采用复变函数解法，研究地面荷载作用下浅埋圆形隧道围岩的平面弹性应力问题。
An open curve formed by a plane that cuts the base of a right circular cone.
一个平面与正圆锥体的底部相交而形成的不闭合的曲线。
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