To use this calculation method can simplify the calculation course, at the same time, it could meet the accurate requirement of engineering design.
使用这种计算方法可以简化计算过程，同时能满足工程设计的精度要求。
To use this calculation method can simplify the calculation course, at the same time, it could meet the accurate requirement of engineering design.
使用这种计算方法可以简化计算过程，同时能满足工程设计的精度要求。
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