This can occur underground, in coal stockpiles, abandoned mines or even as coal is transported.

这种情况可能发生在地下煤矿的煤堆、废弃的煤矿，甚至在煤的运输过程中。

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The Queensland floods have depleted coal stockpiles at Gladstone, one of the nation's biggest coal ports, to a record low.

昆士兰州洪水使得全国最大的煤炭港口之一格列士敦煤炭库存达到创纪录的低点。

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Domestically, electric utilities have already started to reduce coal stockpiles as consumption increased with a higher number of heating days at the end of winter.

从国内来看，由于消费旺盛，加上冬末的供暖天数增加，电力公用事业的需求已令煤炭库存开始降低。

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At the beginning of 2001 coal stockpiles at utilities stood at 30-year lows.

FORBES: The Big Dig

They say this is because it depends on how long the floods continue, and the size of the coking coal stockpiles the world's steelmakers currently have in place.

BBC: Australia floods 'to hit global steelmaking'

And since open pits are still flooded and will take weeks to drain, shipping from stockpiles only postpones the inevitable: a reduction in met coal supply.

FORBES: Australian Floods Cause Drought in the Coal Market