After the landing gear was extended to the down-and-locked position, the flight crew received indications of dual landing gear control and interface unit (LGCIU) faults.

在起落架之后被给予向下并且锁住位置，得到迹象的双起落架控制的飞行机组人员和接口单位(LGCIU)错误。

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Electrohydraulic control unit whose performance has direct effect on rudder's characteristics is the key component of ship rudder position control system.

电液控制单元是船用舵机电液位置伺服系统关键部件，其性能的优劣直接影响舵机的性能。

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Aiming at the problems as the nonlinear factors and the position disturbance in the electro-hydraulic servo loading system of pumping unit, the conventional control method cant attain perfect effect.

抽油机电液伺服加载系统存在非线性和位置扰动引起的准确度问题，传统的控制方法不能达到理想的效果。

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