In this thesis, we present the studies of the central engine and radio jets in radio-loud Active Galaxies Nuclei.

本篇论文主要对射电强活动星系核的中央引擎和射电喷流的性质进行了一些研究。

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The central engine acted as the object, and all the executive engines acted as the observers to observe the state changes of the central engine.

主控引擎充当目标对象，所有的执行引擎充当观察者并关注主控引擎的状态改变。

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Small business is the central engine for job creation and growth, not large firms.

FORBES: Family Business -- Your Most Important Issue -- Successfully Passing It On!

By eliminating a central engine the rest of the car can be configured with the passengers in mind.

CNN: Reinventing the wheel

Instead of a central engine each wheel is powered by "wheel robots", independent motors and suspension systems that would allow the car to maneuver in tight streets and even park sideways by turning 90 degrees.

CNN: Reinventing the wheel