短語(yǔ)詞組短語(yǔ)hopper r bottom car 底開(kāi)式車(chē)hopper -bottom car car 底卸式車(chē)輛hopper bottom freight car 底卸式貨車(chē)bottom discharge hopper car 底開(kāi)漏鬭車(chē)bottom dump hopper car 自卸式底開(kāi)門(mén)車(chē) 返回 hopper bottom car