Máquina de cifra e lead–acid battery: o que têm em comum
- Passo 1. Máquina de cifra — tem como parte — Keyboard. A keyboard.
- Passo 2. Keyboard — faz parte de — Laptop. The keyboard is built into the laptop's case.
- Passo 3. Laptop — tem como parte — Lithium-ion battery. A battery.
- Passo 4. Lithium-ion battery — evoluiu de — Lead–acid battery. The lithium-ion battery is the next generation of rechargeable chemical current sources, with higher specific energy.