短語(yǔ)詞組短語(yǔ)simple equivalent pendulum 單擺nonlinear simple -pendulum 單擺simple e pendulum 單擺;數(shù)學(xué)擺simple -pendulum 單擺Simple Inverted Pendulum System 單級(jí)倒立擺系統(tǒng)a simple pendulum 單擺;敏銳damped simple pendulum 有阻尼單擺simple pendulum experiment 單擺實(shí)驗(yàn) 返回 simple pendulum