critical compression ratioとは 意味・読み方・使い方

The earthquake-proof slit member 6a is formed preferably of the low-expansion-ratio resin foam having the critical compression stress of 10-40 N/mm^2, and more preferably of a polystyrene low-expansion-ratio resin foam having an expansion ratio of five or smaller.例文帳に追加

限界圧縮応力が１０〜４０Ｎ／ｍｍ^２の範囲にある低倍率発泡樹脂からなることが好ましく、発泡倍率が５倍以下のポリスチレン系の低倍率発泡樹脂からなることが好ましい。 - 特許庁