脱だっ進しん機き

noun

escapement

Technical term in horology; the mechanism in a clock or watch that controls the release of energy from the mainspring.

• 機き械かい式しき時計とけいの脱だっ進しん機きは、正せい確かくな時じ間かんを刻きざむために重じゅう要ような部ぶ品ひんです。

  The escapement of a mechanical watch is an important component for keeping accurate time.