| 单词 | compaction |
| 释义 | compaction (once / 173814 pages) n Compaction is what happens when something is crushed or compressed. In many places, garbage undergoes compaction after it's collected, so that it takes up less space. The process of making something more compact, or dense and very tightly packed together, is compaction. Geologists (scientists who study rocks and earth) might talk about the natural process of compaction, when sand or silt becomes denser and denser over time, as heavy material presses down on it. Computer scientists might instead think of data compaction, when data is simplified by removing information that's unnecessary or redundant. WORD FAMILYcompaction: compactions+/compact: compacted, compactedly, compacting, compaction, compactly, compactness, compacts, subcompact/subcompact: subcompacts USAGE EXAMPLESAeration, in which plugs of soil are removed to ease soil compaction, will occur about twice a month. Washington Post(Sep 19, 2016) “But, instead, we found that the compaction problems continue to linger as long as four decades after mining.” Washington Times(Jun 19, 2016) Adding soil and getting it to the correct compaction level is not as easy as it sounds. Washington Post(Jun 07, 2016) 1n the act of crushing Syn|Hypo|Hyper crunch, crush grind, mill, pulverisation, pulverization the act of grinding to a powder or dust compressing, compression applying pressure 2n an increase in the density of something Syn|Hyper compression, concretion, densification concentration an increase in density |
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