Lamp ballast e autoclave: o que têm em comum

1. Passo 1. Lamp ballast — faz parte de — Lâmpada fluorescente. A choke and starter or an electronic ballast.
2. Passo 2. Lâmpada fluorescente — é feito de — Mercury. Mercury.
3. Passo 3. Mercury — é material para — Blood pressure monitor. A column of mercury.
4. Passo 4. Blood pressure monitor — evoluiu de — Manometer. A blood pressure monitor is a manometer connected to a cuff: it measures the air pressure that squeezes the artery.
5. Passo 5. Manometer — faz parte de — Autoclave. The gauge shows whether the steam pressure in the chamber is high enough to sterilize.

Abrir Evothings