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。
HeLuanShi system in engineering field, pressure-blasting machine is mechanism sand, cushion material, asphalt concrete and cement concrete aggregate ideal production equipment.
冬季储罐基础热拌沥青砂垫层施工，受天气和环境温度影响较大，无法满足设计要求。
Tank foundation construction with hot mixed asphalt sand cushion in winter is so affected by weather, environment and temperature that it can not meet design requirement.
高等级公路沥青混凝土路面施工质量控制包括垫层、基层和面层施工质量控制。
The quality control of asphalt concrete pavement of high grade highway involves layers of cushion, base and surface.
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