假使这些品牌不提高产品单价和改变牟取暴利的行为，那么玩具产业工作状况的结构改变是行不通的。
If the brands do not raise the unit price and change their purchasing practices, no structural change in working conditions in the toy industry is feasible.
使模型较准确的反映了心轨的结构特性和工作状况。
So the model can reflect structure characteristic and work state of point rail exactly.
泵的结构参数和工作状况对泵的性能有直接的影响，可以通过改变这些参数来改进泵的性能，从而满足工程实际的需要。
Both the parameters and the working condition can affect the pump's operation and performance directly. It is a useful way to change these parameters to meet the need of the engineering.
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