Heat transfer performance of different backfill materials and temperature field variation of ground-coupled heat pump system are studied.
试验研究了两种不同回填材料地埋管换热器的热响应性能、地源热泵运行对地源温度场的作用。
These materials can be considered as selected backfill materials to improve capability of depository for preventing iodine and technetium ions from migrating.
这些材料可被考虑用作回填材料的候选组分，以提高处置库阻滞碘、锝阴离子迁移的能力。
The indoor experiment on the filling materials used for downward slicing drift mining with cemented backfill in Gaolong Gold Mine was performed.
对高龙金矿下向分层进路胶结充填采矿法所用的充填材料进行了室内试验研究。
The cost of all materials and construction for the overreach beyond the allowed range made by the Contractor for whatever cause including backfill of over-excavation are the Contractor's liability.
无论承包人出于何种原因所造成的超过允许范围的超挖以及这部分超挖的回填，所有材料和施工费用均由承包人负责。
This paper presents the optimization of concrete materials for cement backfill mining in a uranium mine. It describes how to determine the backfill concrete optimizing proportion by orthogonal test.
本文系对某铀矿下向胶结充填采矿集料配比优化，论述了利用正交试验寻求充填混凝土最优配比方法。
This paper presents the optimization of concrete materials for cement backfill mining in a uranium mine. It describes how to determine the backfill concrete optimizing proportion by orthogonal test.
本文系对某铀矿下向胶结充填采矿集料配比优化，论述了利用正交试验寻求充填混凝土最优配比方法。
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