高层建筑地震荷载的合理计算是地震区高层建筑抗震设计的主要内容之一。
The reasonable calculation of seismic load for tall buildings constitutes one of the main contents of the seismic design.
发动机功率的合理计算是装载机总体设计的关键及进行牵引特性分析的依据。
Rational calculation of engine power is the key for general design of loader and it is the criterion of analysis of traction property.
所以加强成本管理、合理计算产品成本，就可为产品市场竞争创造出良好的空间环境。
Therefore, strengthening cost management and making rational calculation of product cost can create a good space and environment for product market competition.
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