Of course, the prices of all fossil fuels tend to move together, but timing lags among the different types of fossil fuels can give the economy significant adjustment room.
当然，所有矿物燃料的价格通常都会一起波动，但不同种类的矿物燃料在价格变动通常有时间，这给经济调整保留足够调整的空间。
The essence of such models is the introduction of lags in the adjustment of variables.
这类模型的实质是在变量的调整中引进时间滞后的概念。
The essence of such models is the introduction of lags in the adjustment of variables.
这类模型的实质是在变量的调整中引进时间滞后的概念。
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