HeLuanShi system in engineering field, pressure-blasting machine is mechanism sand, cushion material, asphalt concrete andcement concrete aggregate ideal production equipment.
在工程领域，河卵石制砂机是机制砂、垫层料、沥青混凝土和水泥混凝土骨料的理想生产设备。
2
The paper briefly describes the problems which should be noticed in grading sand-gravel cushionandcement stabilized sand-gravel base constructions, and the treatments for them.
简述了级配砂砾垫层与水泥稳定砂砾基层在公路施工中应注意的问题及处理方法。
3
The construction process of cementandsand - gravel cushion for the container terminal storage yard, Jingtang Harbour and the quality inspection results are introduced in the paper.