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