短語詞組短語hopper freight car 底卸式貨車hopper bottom car 底開式車hopper r car 底卸式車輛Grass hopper car changer 越頂式換車器pneumatic bllast hopper car 風(fēng)動(dòng)石碴漏鬭車coal hopper car 煤炭漏鬭車hopper r bottom car 底開式車movable grain hopper car 活動(dòng)糧食漏鬭車covered hopper car 有蓋漏鬭車 返回 hopper car