voyant /SCIENCE,ENG-MECHANICAL/
[DE] Schauglas
[EN] sight glass
[FR] voyant
voyant /SCIENCE/
[DE] Zieltafel
[EN] fixed target
[FR] voyant
voyant /ENG-ELECTRICAL/
[DE] Schauzeichen
[EN] indicator
[FR] voyant
signal visuel,voyant /ENG-ELECTRICAL/
[DE] Fallscheibe; Farbscheibe; Kontrollfenster; Schauzeichen
[EN] indicator; visual signal
[FR] signal visuel; voyant