英语词汇“preliminary communications search”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	preliminary communications search
释义	preliminary communications search preliminary communications search In search and rescue operations, consists of contacting and checking major facilities within the areas where the craft might be or might have been seen. A preliminary communications search is normally conducted during the uncertainty phase. Also called PRECOM. See also extended communications search; search and rescue incident classification, Subpart a. AcronymsSeePRECOM
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