在巨大的钻孔机清理出一条小道后，横贯瑞士阿尔卑斯山下方世界上最长的隧道终于成形。这条隧道将建设成为穿过欧洲心脏地带的高速铁路通道的关键路段。
The world's longest tunnel will take shape deep beneath the Swiss Alps on Friday when a giant drilling machine clears a path for a key high speed railway through the heart of Europe.
依据钻孔设备高速滚珠轴承动态特性的辅助方程，进行了根本变量的分析，得到了各个方程组变量相互耦合的关系图和根本变量。
The paper analyzes the ultimate variables and acquires the relationship and ultimate variables according to the auxiliary dynamic equations of high-speed ball bearing in drilling equipments.
方法：用高速牙钻于患骨表面行钻孔术，然后继续应用MEBO治疗。
Method: Drilling through the surface of the injured bone, followed by application of MEBO.
介绍了湖北省高速公路建设首次采用钻孔压浆小桩对小型构造物的软弱地基进行处理的工程实例。
The paper presents the technology and construction methods of drilling press-plasm pile, and also introduces the applied fields and some noteworthy problems during the construction.
高速精密钻孔主轴和钉销气缸系同基准轴线上工作，能保证工作精度高，操作方便。
The high speed drilling shaft and pin cylinder system work at the same reference axis to ensure high work precision and convent operation.
根据乌-奎高速公路上的具体实践，提出了钻孔注浆工艺的适用方法。
Some suitable motheds for bore grouting engineering are suggested according to the situation of the expressway at Wu-Kui section.
选用优质高速钢，多层切削几何，保证稳定的钻孔性能。
Made with high quality high speed steel. Adopting multiple-ply geometry, which guarantee smooth cutting.
选用优质高速钢，多层切削几何，保证稳定的钻孔性能。
Made with high quality high speed steel. Adopting multiple-ply geometry, which guarantee smooth cutting.
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