The most important grinding variables from the point of view of wear are feed size, grinding media size, mill speed, and mill diameter.

就磨损观点来看，橡胶衬板最重要的磨损因素是给矿粒度，磨矿介质尺寸，磨机转速和简体直径。

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Later, as Asia's troubles threw this Pacific-coast province into recession, the government launched grand schemes to create forestry jobs, save lumber-mill towns, attract new aluminium smelters, build infrastructure and create a new high-speed ferry industry.

ECONOMIST: Canada