To answer the requirement of changeable market during mould design making process the virtual prototyping technology can be cut down the cost of mould making test mould and shorten making period.

为了能够快速响应多变的市场需求，在模具设计与制造过程中运用虚拟原型技术可以有效地降低模具制造和试模的成本，缩短制造周期。

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To probe the tendency and factors of the price in this period, the paper finds out the most suitable changeable weight from the aspects of cost and need according to the measurement of price standard.

为探讨在这段时期物价的走势与决定因素，本文以物价水准的计量分析，从成本面与需求面上找出最适的解释变权。

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