dust explosion hazard

Dust accumulation of more than 0.8 millimeters - covering at least 5 percent of a room's surface poses a significant explosion hazard.

粉尘沉积超过0.8毫米，覆盖房间表面达5%或以上时，会有重大的爆炸隐患。

The mine electric leakage can not only cause the electric shock of the people but also some serious accidents such as the fire hazard, coal dust explosion, and gas explosion, etc.

煤矿井下漏电，不仅会引起人身触电，还会酿成火灾、煤尘及瓦斯爆炸等恶性事故。