非ひ円えん形けい

noun which may take the genitive case particle 'no'

non-circular

Technical term used in geometry, engineering, and design to describe shapes that are not circles or circular.

• この部ぶ品ひんは非ひ円えん形けいの断だん面めんを持もっている。

  This part has a non-circular cross-section.

• 非ひ円えん形けい歯は車ぐるまは特とく殊しゅな動うごきを実じつ現げんする。

  Non-circular gears achieve special motions.