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guard ring
antenn.	anello di protezione
earth.sc., tech.	anello di guardia
industr., construct.	cerchio di protezione
pack.	anello di tenuta
tech.	elettrodo ausiliario
guard-ring ['gɑ:drɪŋ]
el.	anello di guardia; armatura di guardia

guard ring: 10 phrases in 5 subjects

Communications	4
Electronics	3
Mechanic engineering	1
Metallurgy	1
Nuclear physics	1