"tri-camera photography" meaning in English

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      "expansion": "tri-camera photography",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      ],
      "glosses": [
        "Photography obtained by simultaneous exposure of three cameras systematically disposed in the air vehicle at fixed overlapping angles relative to each other in order to cover a wide field."
      ],
      "id": "en-tri-camera_photography-en-noun-UGTUrbun",
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      "raw_glosses": [
        "(military) Photography obtained by simultaneous exposure of three cameras systematically disposed in the air vehicle at fixed overlapping angles relative to each other in order to cover a wide field."
      ],
      "related": [
        {
          "word": "fan camera photography"
        }
      ],
      "topics": [
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "word": "tri-camera photography"
}

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      "expansion": "tri-camera photography",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "fan camera photography"
    }
  ],
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        "en:Military"
      ],
      "glosses": [
        "Photography obtained by simultaneous exposure of three cameras systematically disposed in the air vehicle at fixed overlapping angles relative to each other in order to cover a wide field."
      ],
      "links": [
        [
          "military",
          "military"
        ]
      ],
      "raw_glosses": [
        "(military) Photography obtained by simultaneous exposure of three cameras systematically disposed in the air vehicle at fixed overlapping angles relative to each other in order to cover a wide field."
      ],
      "topics": [
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "word": "tri-camera photography"
}