126 kV double-break vacuum circuit breaker

20 kV outdoor on-post vacuum circuit breaker

200kg vacuum furnace

24 kV outdoor high-voltage AC vacuum circuit breaker

4W2 in-vacuum wiggler

a vacuum column

a vacuum furnace

a vacuum transfer line

absolute pressure vacuum gauge

absolute vacuum

absolute vacuum gage

absolute vacuum gauge

AgCu28 vacuum solder

agitating vacuum process

Agrobacterium under vacuum transformation

air and vacuum dual brake equipment

air and vacuum valve

air input to vacuum pump

air tightness test of a vacuum system

air-blowing vacuum membrane distillation (AVMD)