Funicular e lead–acid battery: o que têm em comum

1. Passo 1. Funicular — utiliza — Contrapeso. The cars balance each other.
2. Passo 2. Contrapeso — é utilizado em — Empilhadeira. A counterweight.
3. Passo 3. Empilhadeira — evoluiu para — Warehouse robot. Automating warehouses.
4. Passo 4. Warehouse robot — tem como parte — Lithium-ion battery. A battery.
5. Passo 5. 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.

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