Tourniquet buckle e lead–acid battery: o que têm em comum
- Passo 1. Tourniquet buckle — faz parte de — Tourniquet. It locks the tension.
- Passo 2. Tourniquet — é feito de — Leather. The strap of a tourniquet is leather.
- Passo 3. Leather — é material para — Submarine. It was covered with leather.
- Passo 4. Submarine — tem como parte — Lead–acid battery. Underwater, electric motors run on batteries.