体たい積せき弾だん性せい率りつ

noun

bulk modulus; volume elasticity

Technical term in mechanical engineering and physics for the ratio of pressure increase to relative volume decrease.

• 水みずの体たい積せき弾だん性せい率りつは約やく2.2ギガパスカルです。

  The bulk modulus of water is about 2.2 gigapascals.

• 体たい積せき弾だん性せい率りつが大おおきい材ざい料りょうは圧あっ縮しゅくされにくい。

  Materials with a high bulk modulus are hard to compress.