常見(jiàn)例句雙語(yǔ)例句The paper introduced a new type of dump track for bottom dumping skip, and some issues need to be noticed in design are summarized.介紹了一種新型的底卸式箕斗卸載曲軌，并總結(jié)了固定卸載曲軌設(shè)計(jì)中需注意的幾個(gè)問(wèn)題。 返回 bottom dump track