The dynamic positioning system is a closed loop control system which resists against the disturbance by wind, wave, and current with the help of thrusters on the vessel.

动力定位系统是一种闭环控制系统，采用推力器来提供抵抗风、浪、流等作用在船上的环境力，从而尽可能使船舶保持在海平面要求的位置上。

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To many vessels which carry on the operation on the sea, it is necessary to use the dynamic positioning system.

对于许多进行海上作业的船舶来说，动力定位系统都是必要的支持系统。

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Abstract: This paper studies the pseudolite indoor precision real-time dynamic positioning system, introducing the key issues of the pseudo-satellite positioning;

摘要：本文主要研究伪卫星室内高精度实时动态定位系统，介绍了伪卫星定位关键问题；

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She also has a dynamic positioning system so that PJ World can avoid anchoring in environmentally sensitive areas.

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