"metering pump" meaning in 中文

{
  "categories": [
    {
      "kind": "other",
      "name": "兩岸化學名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "航海科技專有名詞",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "中文",
  "lang_code": "zh",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "* [S:化学]计量帮补\n* [T:化學]計量泵\n* 简体: 计量泵[航海科技]\n* 正體: 計量泵[海事]"
      ],
      "id": "zh-metering_pump-zh-unknown-z~u~8x-A"
    }
  ],
  "word": "metering pump"
}

{
  "categories": [
    "兩岸化學名詞",
    "航海科技專有名詞"
  ],
  "lang": "中文",
  "lang_code": "zh",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "* [S:化学]计量帮补\n* [T:化學]計量泵\n* 简体: 计量泵[航海科技]\n* 正體: 計量泵[海事]"
      ]
    }
  ],
  "word": "metering pump"
}