ETM definitions

Etm

1) Enhanced thematic mapper
Found on https://www.crosswordclues.com/clue/etm

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ETM

Electronic Technical Manuals
Found on http://www.translationdirectory.com/glossaries/glossary262.php

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ETM

acronym: enhanced thematic mapper (Landsat)
Found on https://www.encyclo.co.uk/local/20002

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