emergency governor hand trip的意思|示意
美 / /
英 / /
危急手动脱扣
emergency governor hand trip的网络常见释义
危急手动脱扣 ... emergency governor gear 危急保安器，危急遮断器 emergency governor hand trip 危急手动脱扣 emergency governor oil filling test 危急遮断器充油试验 ...