“shaft boring”的概念、定义、翻译、参考文献-科学参考

单词	shaft boring
释义	shaft boring Encyclopedia 工学特殊凿井法释 shaft boring矿山钻井法用钻井机钻凿竖井井筒的特殊凿井法。在地面采用大直径钻井机向地层钻进竖井，以洗井液护壁并排渣，悬浮下沉预制井壁作为永久支护，实现人员不下井的机械化凿井方法。
随便看	topologically complete set topologically complete space topologically conjugate topologically conjugate homeomorphism topologically embeddable topologically equivalent topologically equivalent spaces topologically free set topologically hyperbolic manifold topologically inequivalent topologically invariant topologically irreducible representation topologically isomorphic topologically isotopic embedding topologically nilpotent element topologically ringed space topologically simple algebra topologically solvable group topologically stable topologically transitive topological manifold topological manifold with boundary topological manifold without boundary topological mapping topological Markov chain

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。