| item | description | category | filter | more on... |
| YLF | International Airline Support Group | Business/General |
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| YLF | Laforges, Quebec, Canada | Regional/Airport Codes |
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| YLF | Yttrium Lithium Fluoride | Edu./Chemistry |
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| YLF | Yttrium Lithium Fluoride laser | Edu./Electronics |
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