freeze down meaning in Hindi

Examples

1. Without a freezing nucleus, a droplet of water may resist freezing down to minus 40 degrees.
2. Boiling I'm not so sure about, but I've got freezing down cold.
3. Experiments have found neither long range magnetic order nor glassy spin freezing down to temperature 50 mK making Herbertsmithite the best candidate for QSL realization.
4. I first thought it was a technical problem, but then when I called the Etisalat company in Dubai, the engineers informed us that it was an intentional freeze down,