"sulfur print" meaning in All languages combined

{
  "categories": [
    {
      "kind": "other",
      "name": "Устойчивые сочетания/en",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Английский",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "glosses": [
        "серный отпечаток"
      ],
      "id": "ru-sulfur_print-en-phrase-QoZnBG-G",
      "raw_glosses": [
        "металл. серный отпечаток"
      ],
      "topics": [
        "metallurgy"
      ]
    }
  ],
  "word": "sulfur print"
}

{
  "categories": [
    "Устойчивые сочетания/en"
  ],
  "lang": "Английский",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "glosses": [
        "серный отпечаток"
      ],
      "raw_glosses": [
        "металл. серный отпечаток"
      ],
      "topics": [
        "metallurgy"
      ]
    }
  ],
  "word": "sulfur print"
}