To account of the absence of scientific norm in the soaking pit management of blooming mill, the optimization of the management is carried out by means of system engineering and network theory.

针对初轧均热炉生产调度普遍存在无科学规范性的现状，利用系统工程原理和网络技术对其进行优化调度。

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But it is still set to shed 800 jobs at Daw Mill by early 2014 unless the pit in Arley can safely boost production.

BBC: Daw Mill mine in Warwickshire remains 'under threat'

While we focused on waste removal, our ore release from the open pit suffered and we dipped into our lower-grade stockpile to feed the mill.

FORBES: Pan American 3Q Silver Output Lifted By Newly Acquired Dolores Mine; Adjusted Earnings Fall