Mangle e micrometer: o que têm em comum

1. Passo 1. Mangle — tem como parte — Manivela. A handle.
2. Passo 2. Manivela — faz parte de — Descaroçador de algodão. The drum was turned by a handle.
3. Passo 3. Descaroçador de algodão — utiliza — Interchangeable parts. Whitney was one of the promoters of interchangeable parts.
4. Passo 4. Interchangeable parts — utiliza — Micrometer. Precise measurement ensures interchangeability.

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