The frequency control of motor speed is used for alternating current motor of main winch on No1 BF charging system, so that it is possible to carry out control of skip moving speed.
安钢1号高炉主卷扬交流电机采用变频调速技术，实现料车运行调速控制。变频器运行一年多来，未发生过一次故障。
Article 4 the State is to carry out control system on the usages of land.
第四条国家实行土地用途管制制度。
How to carry out control survey rapidly and effectively in a new or data confused gold mining area is an important problem for gold geological surveyors to resolve.
到一个新的金矿区或者各种资料比较混乱的金矿区如何理顺思路并在短时间内迅速有效地开展控制测量工作，是黄金地质测量工作者要着重解决的问题。
Working out control measures against hazards in the shutdown and overhaul of petrochemical units based on analysis may effectively lower the risks in the shutdown and overhaul and reduce accident.
通过对石油化工装置停工、检修过程危险因素的分析，有针对性的制定控制措施，可以有效的降低停工、检修过程的风险，减少事故的发生。
The GPS technology to carry out control surveying over mining area, including GPS mesh distribution, outdoor observation, and indoor error-elimination is introduced.
介绍了利用GPS新技术进行矿区控制测量的GPS网布设方法，以及外业观测、内业平差方法及计算。
It applied bifurcation approach of elementary catastrophe theory to find out control parameters' bifurcation values, which decide stability of power systems, further, stability region can be obtained.
它运用初等灾变理论中分岔的概念找出决定电力系统稳定的控制参数的分岔值，从而确定了系统的稳定区域，由稳定区域即可进行系统的稳定判断。
When some environmental values exceeded the setting upper and lower limit or faults come out, control system would send out alarm by buzzer and LED.
当环境内某一环境因子超出预先设定的上、下限报警值或系统运行出现故障时，由蜂鸣器和发光二极管进行报警。
Most people look forward to retirement as a time when they can finally clock out, control their own schedules, and take up activities that they never had the time or energy to pursue before.
很多人向往退休，他们可以不再工作，掌控自己的时间，开始以往想做而没有时间精力去做的事情。
Most people look forward to retirement as a time when they can finally clock out, control their own schedules, and take up activities that they never had the time or energy to pursue before.
很多人向往退休，他们可以不再工作，掌控自己的时间，开始以往想做而没有时间精力去做的事情。
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