equal area method

55???? ... 稳定度等面积准则 equal area criterion of stability 等积法 equal area method 等偏（转）法 equal deflection method ...

... equal area criterion of stability 稳定度等陎积准则 equal area method 等陎积法 equal deflection method 等偏（转）法 ...

等面积... ... ) area of reinforcement 补强面积 ) equal area method 等面积法 ) area replacement reinforcement 等面积法补强 ...