Sorry, the term M-20 is not in the dictionary. Check the spelling and try removing suffixes like "-ing" and "-s".
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Nearby terms:
LZH compression ♦ LZW compression ♦ M ♦ m2 ♦ M2toM3 ♦ M3 ♦ m4 ♦ M5 ♦ ma
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