But compare with FFT, the calculation time needed by the multiple frequency rotate transform is very long, which has influenced its wide application to a certain extent.
但是,与快速傅立叶变换相比,倍频旋转变换理论所需要的计算时间很长,这在一定程度上影响了它的广泛应用。
For a long time, the heat-exchange equipments in thermal power system have been designing mainly depending on traditional experience and manual calculation.
长期以来,制冷行业中换热设备的设计以传统的经验设计为主,主要依靠工程设计人员的手工设计计算。
But the method is constrained in the application to the earthquake engineering because technology is complicate, amount of work is big, and calculation time is long.
但是,时程分析技术复杂、计算工作量大及占用计算机机时长,在地震工程中的应用受到一定的限制。
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