せん断だん箱ばこ

noun

shear box

Technical term in soil mechanics and geotechnical engineering; a device used to measure the shear strength of soil samples.

• せん断だん箱ばこを用もちいて土つちのせん断だん強きょう度どを測そく定ていする。

  The shear strength of the soil is measured using a shear box.