重工业为主的州将会遭受重创，尤其是在那些以烧煤为主的电厂和煤矿开采工密集的地方。
States with lots of heavy industry, and especially those where coal fuels most power plants or provides lots of mining jobs, will suffer most.
以煤矿开采为主的矿山其地质环境有其固有的特征。
The geological environment of the mining area mainly for the coal mining has its inherent features.
而当它发现本地蕴藏着大量的煤矿时，他们又一改以往的以种植业为主的经济模式而转变成美国最大的煤炭基地。
Then when West Virginians discovered coal, they moved away from their farm-based economy and became the United States's largest producer of the black stuff.
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