Small initial heaps reduce fragmentation by encouraging the collector to perform compactions early, when the heap is small and the cost of compaction is lower.
小的初始堆通过鼓励收集器尽早执行紧凑排列来降低碎片率。当堆很小时，紧凑排列成本很低。
Researches show that in the early stage of sandstone diagenesis, compaction, pressure solution, cementation and replacement reduce both the porosity and the permeability.
研究表明，砂岩层内的早期成岩作用(压实、压溶、胶结和交代作用)使孔隙度和渗透性降低。
After some time, the wastes accumulate at a certain level and compaction is done to save on space and to reduce the waste's overall volume.
经过一段时间后，废物累积到某一个水平，并压实，这样做是为了节省空间，并减少废弃物的总量。
It has opened a new way to reduce production costs, save energy and time in a great number of constructions of airports, roads and dams which tequire soil compaction.
它为道路、机场和水坝等工程施工中大量压实工作的节能、省时和降低生产成本探索了一种新的途径。
Compaction quality is improved, with application of impact compaction technique, greatly reduce the porosity of the rockfill to increase the compaction uniformity of each area.
压实质量提高，由于冲击压实技术的应用，使得坝料的孔隙率大大降低，而各区压实的均匀性大大提高。
Diagenesis including compaction and cementation may reduce pores a lot. And fractures formed by dissolution and tectonism can effectively improve physical property.
成岩作用中机械压实和胶结作用使孔隙大量减少，而溶蚀作用和构造作用形成的裂缝有效地改善了储层物性。
The formation of compaction bands could greatly reduce the permeability of rocks, which has potential economic value.
压缩带的形成能够较大地降低岩石渗透性，存在潜在的经济价值。
In order to reduce the loss of the fault coverage when using the parity tree to compact the test response, a method of grouping compaction of the output pins is proposed in the paper.
为了减少利用奇偶树压缩测试响应时的故障覆盖损失，提出了一种输出端分组压缩的方法。
The test results indicate that the compaction of soil from twice pressure groutings can raise the ultimate uplift capacity of micropiles obviously and reduce the displacement effectively.
试验结果表明采用二次注浆工艺能显著提高微型桩抗拔极限承载力，有效地减小抗拔桩位移；
The test results indicate that the compaction of soil from twice pressure groutings can raise the ultimate uplift capacity of micropiles obviously and reduce the displacement effectively.
试验结果表明采用二次注浆工艺能显著提高微型桩抗拔极限承载力，有效地减小抗拔桩位移；
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