The result of preliminary experiment shows that the control scheme can make valve run steadily and reliably, implement precise controlling of valve position.

初步实验结果表明：所提出的控制策略能够使阀门平稳、可靠的运行，实现了阀门位置的精确控制。

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The preliminary experiment results show that the device selection and technique approach are suitable for the neutron imaging system, achieving the research goal.

结果显示，相对灵敏度的模拟与实验结果符合得很好，而中子成像模拟能为惯性约束聚变物理实验的开展提供指导。

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A device arranged on an aerator for fish feeding and used to save energy is provided, and a preliminary experiment shows that the device can save the energy by about 25%.

一种安装在养鱼用的增氧机上，用于节能的装置，初步试验表明，可以节能25%左右。

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In fact, the authors hope to do a preliminary experiment monitoring the spread of the novel H1N1 virus on a college campus, Fowler said.

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