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Shouldn't electronic countermeasures be placed under a warfare category or at the very least defence since civillian aircraft can use these as well. —Preceding unsigned comment added by Darkwand ( talk • contribs) 20:12, 28 February 2010 (UTC) reply

Can also mean Event chain methodology, not sure under what header it belongs —Preceding unsigned comment added by 87.212.16.222 ( talk) 18:07, 2 April 2010 (UTC) reply

A freeware called ECM for MacOSX exists, Its purpose is to reduce the size of a typical CD image that uses raw sectors, converting the new file to ECM file. — Preceding unsigned comment added by Rbcafe ( talk • contribs) 16:51, 27 January 2012 (UTC) reply

See https://batterypowercentre.com.au/all-about-agm-stop-start-batteries/ for a primary source for this usage.

Enhanced cyclic mat should be either a stub or more probably a redirect. Andrewa ( talk) 23:55, 28 October 2020 (UTC) reply