The result of preliminaryexperiment 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。
2
The preliminaryexperiment results show that the device selection and technique approach are suitable for the neutron imaging system, achieving the research goal.
A device arranged on an aerator for fish feeding and used to save energy is provided, and a preliminaryexperiment shows that the device can save the energy by about 25%.