中ちゅう速そく

noun

medium speed; intermediate gear

Used in mechanical and automotive contexts for a gear setting between low and high, or more generally for a moderate speed.

• 坂さか道みちでは中ちゅう速そくに切きり替かえてください。

  Please shift to intermediate gear on slopes.

• この機き械かいは中ちゅう速そくで動うごかすのが一いち番ばん効こう率りつ的てきだ。

  This machine runs most efficiently at medium speed.