Grundfos introduces the Alpha 2 which is advancement of the permanent - magnet motor pump Alpha Pro.

Grundfos推出的Alpha2系列是AlphaPro系列永磁电机泵的升级产品.

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A parallel motor pump - valve aircraft control system was developed using a fuzzy variable structure control method.

为了提高一类电机泵阀并联式飞机机载作动系统的鲁棒性,设计了一种模糊变结构控制方法.

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