Its circular brick-and-cement foundation is stationary, supporting a steel track on which the house revolves, moved by a small electric motor.

圆形的砖混地基底座是固定的上面安装了钢轨而房体就由一台小型电动马达驱动在钢轨上转动。

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This type of rotor position sensor lays a foundation for the closed-loop control of step motor.

这种新型位置传感器为进一步实现步进电动机闭环控制奠定了基础。

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The paper introduces the retrofit of mill, which is done without change of the places of motor, reducer and foundation.

本文介绍的磨机改造是在电机、减速器、基础位置不允许变动的情况下进行的。

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Microloan Foundation provides its local loan officers with motor bikes so they can reach villages only accessible by dirt roads.

BBC: Lessons from microfinance

It also noted that children must be provided with a solid foundation in socialisation, listening and speaking skills, and fine motor skills before proceeding to the demands of reading and writing.

BBC: Review for early learning goals