来自俄罗斯全国各地的500多名紧急救援人员迅速修复煤矿通风系统，重建矿井，以使对被困人员的救援可以持续开展。
More than 500 emergency workers from around the country raced to restore ventilation to the mine and rebuild mine shafts so the search for those trapped could resume.
警方说，停电影响了该国南岛偏远地区的派克河煤矿矿井的通风系统。
Police say a power cut is compromising the ventilation system in the Pike River Coal Pit in a remote part of the country's South Island.
优化矿井通风系统是煤矿安全生产的一个关键。
Optimization of mine ventilation system is one of the critical issues for coal mine's safe production.
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