有效翼缘宽度
effective flange width
effective width of flange
有效计算宽度
effective flange width
effective calculating width
effective calculation width
混凝土强度有效系数
effective factor of concrete strength
等效宽度系数
equivalent width coefficient
受压翼缘有效分布宽度系数
effective width coefficient of compressive top flange
翼缘有效分布宽度
flange effective distribution width
effective distribution width of flange
半数有效效应室浓度
half effective target effect-site concentration
单级过程有效系数
effective simple process factor
反应有效系数
valid reaction coefficient
基坑有效系数
effective coefficient of excavation pit
计算有效性
Computational efficiency
Computational effectiveness