图13：需求变动—通过修改的数量进行测量。
Figure 13: Requirements churn (volatility) - measured by number of revisions.
家庭储蓄需求变动对银行产品供给没有诱导作用。
Household savings demand changes play no role of inducing over banking product supply.
看来变动汇率在面临出口需求变动时能发挥较好的作用。
Flexible exchange rates seem to perform better in the face of shifts in export demand.
可以想像，临时工与time &more的护士一样，根据人员需求变动，可以“呼之即来，麾之即去”。
You might imagine that thetemporary workers, like the nurses employed by time &more, arecalled in when demand is high and sent away when it slackens.
由于技术上的复杂性，当需求的变化来临时，系统不能快速有效地响应需求变动，无法及时做出相应的调整。
Due to the technical complexity, when change in user demand comes, the system can not respond quickly and usually fails to make appropriate adjustments.
在底层系统技术以快速的步伐发生变化时，需求变动性就会大量地滋生；这会导致设计和组件的提早退化，否则它们是可重用的。
Requirements volatility stems largely from the rapid pace at which underlying system technologies change; this leads to early obsolescence of designs and components that might otherwise be reusable.
研究结果表明，在控制人民币实际汇率变动和国外市场需求变动之后，我国贸易差额与人民币升值预期之间的相关关系非常显著；
The results show that China's trade balance is significantly related with the expectation of RMB appreciation after controlling the movement of real effective exchange rate and abroad market demand;
技术人员认为，股票价格的变动，只不过是供应和需求变化的反应。
Technicians believe that stock price movements are nothing more than the reflection of changes in supply and demand.
货币供应量的变化难以解释价格水平的变动，价格水平的波动除受总需求变化的影响外，还受总供给变化的影响。
The change in money supply cannot explain the change in price level. Except being affected by general need, price fluctuation is also affected by the change of general supply.
我们要求变动，需求公正，要求平衡。
我们要求变动，需求公正，要求平衡。
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