equations方程[式]equationn.相等；均衡；方程式；等式equations of gyroscopic motion陀螺仪运动方程equational maturation division均等成熟分裂equation of gear tooth surface齿面方程equation of the influence line影响线方程equations of spherical surface球面系equation of law and regulation法规方程equation of radiative transfer辐射传递方程,辐射转移方程equation of nonlinear vibration非线性振动方程equations of forced oscillation受迫振动方程组equation with dynamic constrain变约束方程