“WEF”是“Water Environment Federation”的缩写，意思是

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“WH”是“Warnock Hersey Mark”的缩写，意思是“沃诺克赫

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“BE”是“Break Even”的缩写，意思是“盈亏平衡”

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“NBFU”是“National Board of Fire Underwriters”的缩

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“NEMA”是“National Electrical Manufacturers

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“ANA”是“American Numismatic Association”的缩写，意

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“DM”是“German Mark (Deutsche Mark)”的缩写，意思是

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“DM”是“German Mark (Deutsche Mark)”的缩写，意思是

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“ASDA”是“American Stamp Dealers Association”的缩写

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“IATA”是“International Air Transport Association”

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