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正翻译步骤 15

步骤 15
Taking care not to sneeze, we tweeze out the rotor/drive gear. Snuggled up against a penny, this drive gear looks quite inconsequential, but the rotor's permanent magnet enables it to rotate 180 degrees with each pulse of the coil.
  • Taking care not to sneeze, we tweeze out the rotor/drive gear.

  • Snuggled up against a penny, this drive gear looks quite inconsequential, but the rotor's permanent magnet enables it to rotate 180 degrees with each pulse of the coil.

  • Extreme miniaturization means this watch draws very little power—with this configuration, it should last years on a single charge. Apple's claim of "all-day battery life" seems a mite conservative.

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