共 50 条
- [42] EXCIMER LASERS DRILL PRECISE HOLES WITH HIGHER YIELDS LASER FOCUS WORLD, 1995, 31 (08): : 81 - 83
- [44] EXPLORATION DRILL HOLES CAN BE SEALED WITHOUT CEMENT E&MJ-ENGINEERING AND MINING JOURNAL, 1981, 182 (08): : 96 - 99
- [46] Exploring drill holes by sample-taking bullets TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1939, 132 : 85 - 97
- [48] DOWEL HOLES DRILLED FAST WITH SMALL HYDRAULIC DRILL HIGHWAY & HEAVY CONSTRUCTION, 1983, 126 (10): : 60 - 60
- [49] Nanosecond laser pulses efficiently drill holes in metal LASER FOCUS WORLD, 2011, 47 (06): : 12 - 12