High-voltage direct current e lathe: o que têm em comum
- Passo 1. High-voltage direct current — utiliza — Rectifier. Rectifiers and inverters at the ends of the line.
- Passo 2. Rectifier — faz parte de — LED lamp. The driver in the base rectifies mains current and limits the LED current; in an ordinary bulb it has no transformer.
- Passo 3. LED lamp — evoluiu de — Incandescent light bulb. It replaced incandescent bulbs.
- Passo 4. Incandescent light bulb — é feito de — Tungsten. A tungsten filament (since 1904–1910).
- Passo 5. Tungsten — é material para — High-speed steel. Tungsten.
- Passo 6. High-speed steel — é utilizado em — Lathe. Cutting tools.