近日点 perihelion?
周边 perimeter?
加速时间 period of acceleration?
拍频周期 period of beat?
制动时间 period of braking?
振荡周期 period of oscillation?
回转周期 period of revolution?
振荡周期 period of vibration?
周期 period?
周期误差 periodic error?
周期力 periodic force?
周期函数 periodic function?
周边 perimeter?
加速时间 period of acceleration?
拍频周期 period of beat?
制动时间 period of braking?
振荡周期 period of oscillation?
回转周期 period of revolution?
振荡周期 period of vibration?
周期 period?
周期误差 periodic error?
周期力 periodic force?
周期函数 periodic function?
周期律 periodic law?
周期运动 periodic motion?
周期轨道 periodic orbit?
周期扰动 periodic perturbation?
周期势 periodic potential?
周期正弦流 periodic sinusoidal flow?
周期性结构 periodic structure?
周期系 periodic system?
周期变化势 periodically changing potential?
周期性 periodicity?
圆周力 peripheral force?
周缘速度 peripheral speed?
周缘张力 peripheral stress?
周缘张力 peripheral tension?
周缘速度 peripheral velocity?
永久性 permanence?
稳定旋转轴 permanent axis of rotation?
恒流 permanent current?
剩余形变 permanent deformation?
永久伸长 permanent elongation?
永久硬度 permanent hardness?
持续负载 permanent load?
残余形变 permanent set?
稳定波 permanent wave?
渗透系数 permeability coefficient?
膜的渗透性 permeability of the membrane?
渗透率张量 permeability tensor?
渗透性 permeability?
透水层 permeable layer?
渗透压 permeation pressure?