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割线模量
avia. secant modulus
eng.geol. secant modulus (ES)
tech. chord modulus
割线模量通常指岩石应力-应变曲线上压应力为抗压强度的50%的点与坐标原点连线的斜率，以MPa或GPa 表示
expl. secant modulus
割线变形模量
tech. secant modulus
割线模量: 2 phrases in 2 subjects
Bridge construction1
Oil / petroleum1

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