Examples of electricity-sound efficiency of piston transducer and energy dissipation per unit vibration energy D ate given.

给出了活塞式换能器的电声效率、压电元件能量耗散值D的计算结果。

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The origin of the unit vibration in small guide vane opening is analyzed when the unit is closing and the optimal scheme of the unit closing law is suggested.

本文拟对关机过程中导叶小开度振动原因进行分析，并对机组关闭规律的优化方案及实施过程进行介绍。

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At last, a set of online monitoring of hydropower unit vibration and analyzing system is developed, including IPC, A/D cards, vibration sensors and correlative modules.

最后研制了一套由工控机、A／D卡、振动、摆度传感器及相关模块组成的振动在线监测与分析系统。

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With an Anti-Vibration Integrated Subwoofer inside the speaker unit, the SC-HTB70 provides high-quality, clear sound playback in each of its four layouts.

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The structure of the unit is fortified thoroughly to prevent distortion and vibration, so music is reproduced with natural highs and thunderous lows.

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