"Freycinet gauge" meaning in English

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  "lang_code": "en",
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      "glosses": [
        "A standard governing the dimensions of the locks of some canals, put in place as a result of a law passed during the tenure of Charles de Freycinet as minister of public works of France, dating from 5 August 1879."
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          "standard",
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          "dimension",
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        [
          "lock",
          "lock"
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        [
          "canal",
          "canal"
        ]
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        "Freycinet gauge"
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  "lang_code": "en",
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      "glosses": [
        "A standard governing the dimensions of the locks of some canals, put in place as a result of a law passed during the tenure of Charles de Freycinet as minister of public works of France, dating from 5 August 1879."
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        [
          "standard",
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          "dimension",
          "dimension"
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        [
          "lock",
          "lock"
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          "canal",
          "canal"
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