"check valve" meaning in 中文

{
  "categories": [
    {
      "kind": "other",
      "name": "兩岸化學名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "電機工程專有名詞",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "中文",
  "lang_code": "zh",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "* [S:化学]止逆阀\n* [T:化學]止回閥 ; 單向閥\n* 正體: 節制閥；止回閥[電機工程]"
      ],
      "id": "zh-check_valve-zh-unknown-WqksBugY"
    }
  ],
  "word": "check valve"
}

{
  "categories": [
    "兩岸化學名詞",
    "電機工程專有名詞"
  ],
  "lang": "中文",
  "lang_code": "zh",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "* [S:化学]止逆阀\n* [T:化學]止回閥 ; 單向閥\n* 正體: 節制閥；止回閥[電機工程]"
      ]
    }
  ],
  "word": "check valve"
}