triodes (English)
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    Contributed by: Webmaster-II on 2017-09-21
    Ref: বিজ্ঞানকোষ দ্বিতীয় খণ্ড
    1. Physics(Material Noun-Neuter) an electronic amplifying vacuum tube এবিধ তাপ-আয়নীয়-ভালভ