常見(jiàn)例句Application of model tool plate in rockshaft equip 模具盤(pán)在井筒裝備中的應(yīng)用The basic parameter and the performance evaluation of the rockshaft 拖拉機(jī)提升器的基本參數(shù)和性能評(píng)價(jià) 返回 rockshaft