The study on the transmission of power flow in complex vibration system is a valuable research issue in vibration field and the key research in the vibration engineering field.
复杂隔振系统的振动传递特性研究是振动噪声控制领域具有实际工程意义的研究方向，是振动工程界当前的热点研究问题。
The study on flow field in front and at back of a Francis turbine runner is very important for the runner in its hydraulic design and characteristic improvement.
混流式水轮机转轮前后的流场研究对于转轮水力设计，改善其性能有着重要意义。
Both at home and abroad, many researches have been carried out to study the spray field, but the influencing factor of atomizer in cross flow is still a relatively new research topic.
国内外对喷嘴喷雾的实验和数值模拟已经开展了相当多的研究，但喷嘴在横向流流场中雾化的影响因素还是一个较新的研究课题。
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