availability ratio是什么意思

用法例句

In this paper, for the thin walled linear strengthened steel box beam, the strength and valid width ratio of flange is investigated under the condition of elastoplastic limit state.

对由线应力性强化材料制造的薄壁钢箱梁在弯曲极限状态下的强度及有效宽比进行了分析。