Meaning of (निर्वात नली) nirvat nalee,nirvat nali in english

Other :
vacuum tube
Exampleनिर्वात नली का हिन्दी मे अर्थ

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(निर्वात नली) nirvat nalee,nirvat nali No of characters: 11 including consonants matras. Transliteration : nirvaata nalii

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