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抗裂安全系数
bridg.constr.	factor of safety for crack-resistance; safety factor of anticracking
eng.geol.	factor of safety against rupture
hydroel.st.	factor of safety against craking
oil	factor of safety against cracking
tech.	coefficient of safety against cracking

抗裂安全系数: 2 phrases in 2 subjects

Bridge construction	1
Technology	1