“shaft drilling”的概念、定义、翻译、参考文献-科学参考

单词	shaft drilling
释义	shaft drilling Encyclopedia 工学竖井施工方案释 shaft drilling竖井凿岩竖井施工中，在井筒围岩上钻凿炮孔的作业。是竖井掘进中的一项主要工序，约占整个掘进循环时间的20%～30%。
随便看	confocal cones confocal congruences confocal conics confocal coordinate confocal curves confocal ellipses confocal ellipsidal coordinate confocal ellipsoidal coordinate confocal ellipsoids confocal family confocal hyperbolas confocal hyperboloids confocal hypersurfaces confocal laser endomicroscopy confocal laser scanning microscopy confocal laser scanning miscoscopy confocal lens confocal microprobe Raman spectrometry confocal microscope confocal microscopy confocal optical microscope confocal parabolas confocal parabolic coordinate confocal paraboloidal coordinate confocal paraboloids

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。