大到几十吨一块的,小到拳头大小的不等。
As large as dozens of tons of a small size to the fist size.
千层石有土黄色的,土红色的,也有一层黑一层白的,大到几十吨一块的。
Thousands of stone has a yellow soil, red soil, there is a layer of black layer of white, large to dozens of tons of a piece of.
这三次爆破目标是重达几十吨的废铁铊、钢筋混凝土梁、柱和边墙,其作业条件苛刻。
The blasted objectives are scrap iron lump of several tens ton weight, reinforced concrete beam, pillar and side wall respectively. The work-condition is harsh.
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