Flying rock accident accounts for a great ratio of blasting accidents in open stone pits, which poses serious threat to safe production in mining area.
在诸多露天采场爆破事故中，飞石事故占很大的比率，对矿区的安全生产构成了严重威胁。
Decisive measures must be adopted to prevent serious water pollution accidents from happening again in the Huai River drainage area.
要采取果断措施，防止淮河流域再次发生重大水污染事故。
Decisive measures must be adopted to prevent serious water pollution accidents from happening again in the Huai River drainage area.
要采取果断措施，防止淮河流域再次发生重大水污染事故。
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