| 释义 |
- 1
There is no graded gravel bed to buy, transport, handle at the job site, and install. 没有分级砾石床的购买、运输、工作现场的处理和安装等问题。 - 2
Mixture while mixing, transport, spreading and rolling process, analytical quality control methods to improve construction quality graded gravel. 同时在混合料拌合、运输、摊铺及碾压过程，分析质量控制的方法，提高级配碎石的施工质量。 - 3
According to the research, the natural graded gravel is the best backfill material of graded crushed stone, grit, lime stabilized soil and rock chips. 研究表明，在连续级配碎石、砂砾、石灰稳定土、石屑几种回填材料中以自然级配砂砾石为最佳台背回填材料。
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