然而，为改进其水动力学性能和促进其实用化，尚有一些问题需要解决，例如有关三体船构型与阻力性能的关系。

There, however, are still some problems to be tackled to improve its hydrodynamic performances and promote its practical use, such as the relation between the configuration and its resistance.

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这两方面的研究与国外有一定的差距，特别是船、桨水动力性能的研究几乎是空白。

The improvement of sport skill and hydrodynamic performance of the both of boats and oars is the key.

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数值船池技术属于船舶工程学科关键共性技术和高新技术，它为船舶水动力学研究开辟了一条新途径。

Numerical Towing Tank technology is the key and high technology in ship engineering, and provides a novel method to study ship hydrodynamics.

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