The maze of livestock pens and walkways at Chicago's stockyards, ca.

对牲畜圈舍,并在芝加哥的堆料场, 长约人行道迷宫.

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The operation in Angang blending yard and the affect factors were presented.

介绍了二次料场混匀堆料的情况及影响因素,提出了提高混匀效果的对策.

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Here we are in the yard of the steel mill.

这儿就是不锈钢厂的料场.

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