机构:

“ECHA”是“Executive Committee For Humanitarian

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“ECHO”是“European COmmunity Humanitarian Aid

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“ECM”是“Electronic Countermeasures”的缩写，意思是“

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“ECN”是“Electronic Change Notice”的缩写，意思是“电

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“MEECN”是“Minimum Essential Emergency

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“ECO”是“Electronic Combat Officer”的缩写，意思是“电

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“ECOSOC”是“Economic and Social Council (UN)”的缩写

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“ECP”是“Emergency Command Precedence”的缩写，意思是

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“ECS”是“Expeditionary Combat Support”的缩写，意思是

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“ED”是“Envelope Delay”的缩写，意思是“包络延迟”

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