He hath also broken my teeth with gravel stones, he hath covered me with ashes.
他又用沙石碜断我的牙，用灰尘将我蒙蔽。
At the site, she saw broken human bones on the surface mixed with gravel.
在现场，她看到地面上露出了破碎的人类骨骼，与沙砾混合在一起。
Production experiment indicates that this kind of drill bit has ideal effect in the middle-hard broken formation and the soft-hard interlayer as well as in the gravel formation.
生产性试验表明，该类型钻头对于钻进硬而破碎地层、软硬夹层以及卵砾石地层均具有很好的使用效果。
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