“laser guide of vertical shaft”的概念、定义、翻译、参考文献-科学参考

单词	laser guide of vertical shaft
释义	laser guide of vertical shaft Encyclopedia 工学建井测量释 laser guide of vertical shaft立井激光指向法在立井掘进砌壁的过程中，应用激光投点仪代替中心垂球，来标定立井井筒中心点即立井垂直凿进方向的方法。又称立井激光指向。
随便看	singular point of a difference equation singular point of a differential equation singular point of a quadric singular point of a surface singular point of higher order singular point of order k singular probability distribution singular process singular projective transformation singular proposition singular q-cochain singular quadratic form singular quadric singular quadric hypersurface singular saddle point singular semigroup singular sequence singular series singular set singular set function singular simplex singular simplicial set singular skeleton singular solution singular space

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