等效力系
equivalent force system
equivalent force systems
equivalent forces
force system of equal effect
Equipollent
等效系数近似取值
approximate value of equal effective coefficient
混凝土-钢材厚度等效系数
concrete-steel thickness equivalent factor
射线照相等效系数
Radiographic equivalence factor
再生水等效系数
Equivalent coefficient of reclaimed water
内力臂系数
coefficient of internal force couple arm
h参数等效电路
h parameter equivalent circuit
等效等幅疲劳应力幅
equivalent fatigue stress range
等效等向辐射必v
equivalent isotropic radiation power
EIRP
等效孔隙压力系数
equivalent porous pressure coefficient