5月11日，一个布隆迪骑车人踩着脚踏冲坡。
车辆在山区道路上陡坡时，应在坡底提前减挡，加速冲坡。
When a vehicle goes uphill on a mountain road, it should change to the lower gear in advance, speed up and dash uphill.
张坝沟石灰石矿长期采用光面爆破技术来减小爆破震动及后冲对固定边坡的危害。
Perimeter blasting technique, which can decrease the blasting vibration and harmfulness on fixed slope, is used in the Zhangbagou Limestone Mine.
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