permanent control

England dominated Normandy for some 30 years until France gained permanent control in 1450.

英国统治诺曼底约30年,直到法国在1450年得到永久的统治权.

Direct Thrust Control of Interior Permanent Magnet Linear Synchronous Motor Based on Voltage Estimation

基于电压预测的直线永磁同步电机直接推力控制

Rarely can permanent control be achieved by a single application of spray.

使用一次药剂防治难于持久地控制害虫.

Thrust Control of Permanent Magnet Linear Synchronous Motor with Low Ripple and Constant Switching Frequency

低脉动恒开关频率直线永磁同步电机推力控制

Through the example of permanent pin timbering parapet in the west district of Changsha Institute of Electric Power, the methods of jet pin timbering construction and the key points of quality control were introduced.

通过长沙电力学院西区永久性锚拉挡墙施工实例，介绍喷锚（土钉墙）的施工方法，质量控制关键点等施工技术。

From the energy consumption, made the comparison test between asynchronous motor and permanent magnet synchronous motor hydraulic power systems, throttle governing and frequency control hydraulic power systems.

运用本实验系统，对节流调速/变频调速液压系统、异步电机/永磁同步电机液压动力系统进行了能耗对比分析。

The Haihe River must be brought under permanent control!

一定要根治海河!

Direct thrust control for interior permanent magnet linear synchronous motor ( IPMLSM) with hysteresis causes notable thrust as well as flux and current pulses during steady-state operation or with uncertain switch frequency.

直线永磁同步电机直接推力滞环控制，导致开关频率不定及稳态运行时会有明显的推力和磁链脉动产生。