Meaning of (निरंतर परिवर्तन) nirantar parivartan in english
As noun :
flux Ex:  Phonon flux is still present but carries less than 1% of the energy.
Suggested : a flowing or flow
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(निरंतर परिवर्तन) nirantar parivartan
can be used as noun.. No of characters: 15 including consonants matras.
Transliteration :
nira.ntara parivartana