principal stress moment枝力矩

principal stre moment枝力矩

principal bending moment咒矩

principal moment of inertia[物] 主惯性矩;[物] 主转动惯量;知动惯量;诌性矩

Principal Vector and Principal Moment主矢和主矩

central principal moment of inertia中心知动惯量;中心主惯性矩

Centroidal principal moment of inertia形心主惯性矩

principal moment of force sys-tem力系的主矩

principal fan-shaped moment of inertia主扇形惯性矩