"gray body" meaning in 中文

{
  "categories": [
    {
      "kind": "other",
      "name": "兩岸化學名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "測繪學專有名詞",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "中文",
  "lang_code": "zh",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "* [S:化学]灰体\n* [T:化學]灰體\n* 简体: 灰体[测绘学]\n* 正體: 灰體[測量學]"
      ],
      "id": "zh-gray_body-zh-unknown-cYhyo1LA"
    }
  ],
  "word": "gray body"
}

{
  "categories": [
    "兩岸化學名詞",
    "測繪學專有名詞"
  ],
  "lang": "中文",
  "lang_code": "zh",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "* [S:化学]灰体\n* [T:化學]灰體\n* 简体: 灰体[测绘学]\n* 正體: 灰體[測量學]"
      ]
    }
  ],
  "word": "gray body"
}