全断面爆破 [
quán duàn miàn bào pò]

full-face blast
- 利用光面爆破技术,Ⅲ类围岩全断面一次开挖,Ⅱ类围岩和断层破碎带半断面正台阶开挖。
Applying the technology of smooth blasting, the complete section of the Ⅲ surrounding rock and the half section of the broken and the Ⅱ surrounding rock have been excavated at the obverse step.
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