青云翻译

"Advance support, short cycle, weak burst, less disturbance, supporting timely follow-up" the principle of excavation, the rock surface optical burst error control within the allowable range.

"Advanced support, short cycles, weak blast, less disturbance, support to follow up in due course" principles of excavation, smooth rock surface errors within the allowable range.

“Supports and protects, the short circulation, the weak demolition, the few perturbation in advance, at the right moment supports and protects follows up” the principle to carry on excavates, explodes the light the crag surface error control in the permission scope.

"Advance support care, short-cycle, the weak blasting, less disturbed, timely support care follow-up" principle will be excavated, rock-oriented optical burst error control within the permitted.

"Advanced support, short cycles, weak blast, less disturbance, support to follow up in due course" principles of excavation, smooth rock surface errors within the allowable range.