断だん面めん積せき

noun

cross-sectional area

Technical term used in physics, engineering, and materials science to describe the area of a cross-section.

• このワイヤーの断だん面めん積せきは2平へい方ほうミリメートルです。

  The cross-sectional area of this wire is 2 square millimeters.

• 断だん面めん積せきが大おおきいほど、流ながせる電でん流りゅうも増ふえます。

  The larger the cross-sectional area, the more current it can carry.