短語詞組短語ballistic c pendulum 沖悔Ballistic pendulum method 紡織品Ballistic Pendulum Calibration 擺錘沖擊校準ballistic pendulum test 彈道擺試驗ballistic pendulum impulse test 彈道擺測比沖試驗T Ballistic Pendulum 藝術(shù)搖滾Small ballistic pendulum 小彈道擺The calculations about ballistic pendulum 關(guān)于沖擊擺的計算 返回 ballistic pendulum