The most significant percentage decrease in physical volume was registered by soap stone (-48%).
其中销售量减少最为显著的是皂石,减少了48%。
The most significant decline in recent years has been coal: U. S. coal consumption fell 13% in 2015, the highest annual percentage decrease of any fossil fuel in the past 50 years.
下滑幅度最大的能源为煤炭,在2015年美国煤炭消费份额下降13%,是过去50年一年之内下滑幅度最大的化石燃料。
The most significant decline in recent years has been coal: U. S. coal consumption fell 13% in 2015, the highest annual percentage decrease of any fossil fuel in the past 50 years.
下滑幅度最大的能源为煤炭,在2015年美国煤炭消费份额下降13%,是过去50年一年之内下滑幅度最大的化石燃料。
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