As with pigs, the supply of chips cannot quickly react to changes in demand.

和猪肉的供应一样，芯片供应无法对需求的变化迅速作出反应。

So and the thinking hasn't changed in demanding that.

因此，想法并没有改变要求这一点。

Constrained supply means that changes in demand determine the price of energy—and the weather is the most uncertain determinant of demand.

供应受限意味着需求的变化决定了能源价格——而天气是需求最不确定的决定因素。

But the more significant change, of which we have to take account, is the effect of changes in demand both on costs and on volume.

但我们必须考虑的更重要的变化是需求变化对成本和数量的影响。

The implication is that such unemployment as exists at any time is due wholly to the fact that changes in demand conditions are continually taking place and that frictional resistances prevent the appropriate wage adjustments from being made instantaneously'.

这意味着任何时候都存在的这种失业完全是由于需求条件不断发生变化以及摩擦阻力阻止立即进行适当的工资调整这一事实造成的。