... feed nozzle 进气喷嘴 feed of one size 单一粒度进料 feed of wide size distribution 宽粒度分布给料 ...
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One of the world’s poorest countries, only twice the size of Ireland, Bangladesh already finds it hard to feed its people.
孟加拉国是世界上最为贫穷的国家之一，虽然领土面积只有爱尔兰的两倍，却已经无法养活国民。
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