Soon, all became clear: the stuffing machine operator had managed to fill the teddy bear stuffing machine hopper with car wheels.
不久，所有的一切都清楚了：装箱机的操作工把玩具车轮放入了泰迪熊装箱机的送料斗。
2
The freight car was tank cars and the hopper cars that piled up cokes.
货物车辆大部分是装著焦炭漏斗货车的或著油罐车。
3
The unloading car will alternatively stop and start against the operation condition of the conveyer, material level in the storehouse and blockage of the hopper.