So some of the surplus glass is down-cycled into construction aggregates or sand for filtration systems.
因此有些剩余的玻璃被降级处理为聚合物或过滤系统的沙。
It has guidance for the trial, design and construction of eolian - sand road.
这对于利用风积沙进行筑路的试验、设计及施工有一定的指导意义。
The drilling pressure slurry used in construction of big gauge slant piles is introduced. It provides methods and experience for slant pile of concrete without sand.
介绍钻孔压浆成桩法在第四纪粘土地层大口径斜桩施工中的应用情况，为无砂混凝土斜桩成桩施工提供了一定的方法和经验。
应用推荐