In SNA, the transformation of data by packing two characters in a byte so as to take advantage of the fact only a subset of the allowable 256 characters is used ; the most frequently sent characters are compacted.
Similarly, some kinds of dry refuse can be collected separately glass, newspapers, and aluminuim cans, for example. all of these materials can be processed for reuse. In some cases, dry refuse has also been compacted to serve as fuel.
The pellets are dropped into a cell in the hive, mixed with nectar by other worker bees, and compacted.
Heat and lack of rain have compacted the soil.
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