The larger the structural fluctuation of RFE was, the lower the relaxation degree was in the same frequency condition.

在相同的频率条件下，弛豫铁电体的结构起伏程度越大，弛豫程度越低。

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Subsequently, an open loop experiment has been tested which verified the feasibility of the experimental generation system can run in variable speed and constant frequency condition.

随后，进行了双定子无刷双馈发电机实验系统的开环发电实验，实现了该发电系统的变速恒频发电。

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Twin stator brushless doubly fed machine generation system which has no electrical brush and can running in variable speed and constant frequency condition is very suitable for wind power generation.

双定子无刷双馈发电机具有无刷化和可进行变速恒频发电的特点，非常适合于风力发电系统，对其发电系统的研究，将使这种新型电机能够尽快地应用于实际之中。

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Ranger IV was also equipped with a seismometer and radio transmitter, designed to be released in a small capsule from the rocket before impact and land on the Moon in sufficiently good condition to measure the frequency of natural earthquakes in the body of the Moon.

BBC: 1962: First US rocket lands on Moon