LABEL LSR POLY WHITE 1.OO X .50" Panduit Corp (204 pages) PLL-8-Y2-5 LABEL LSR POLY WHITE 1.OO X .38" Panduit Corp (204 pages) PLL-16-Y2-5 LABEL LSR POLY YEL 1.88 X .38" Panduit Corp (204 pages) PLL-24-Y2-5 LABEL LSR POLY WHT .56 X .19" Pandu...
已知一平面简谐波的表达式为y=0.25cos(125t−0.37x)(SI)(1)分别求x1=10m,x2=25m两点处质点的振动方程;(2)求x1,x2两点间的振动相位差;(3)求x1点在t=4s时的振动位移。