青云翻译

Accordance with the "advance support, short cycle, weak burst, less disturbance, supporting timely follow-up" the principle of excavation,

According to the "Advanced support, short cycles, weak blast, less disturbance, support to follow up in due course" principles of excavation,

According to “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,

In accordance with the "Advanced support care, short-cycle, the weak blasting, less disturbed, timely support care follow-up" with the principle of the excavations.

According to the "Advanced support, short cycles, weak blast, less disturbance, support to follow up in due course" principles of excavation,