AC power propulsion systems have the requirements of high efficiency, low harmonics and noise.

电力推进系统的设计需满足高效率、低谐波和低噪声的要求。

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The excellent characterics of power batteries and the appearance of new battery systems will promote electric power propulsion systems going to new application fields also.

动力电池优异本性和新电池体系的出现又促进了电力推进系统进入新的应用领域。

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Although other electric propulsion systems have been developed, Lozano's is considered superior because it USES only one power supply.

尽管其他的电子推进系统已经开发出来，Lozano的被认为是优越的，因为它仅仅使用一个能量供给。

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Throughout, the power, propulsion and communications systems were uninterrupted, the company said.

CNN: Royal Caribbean cruise cut short after on-board fire

Aside from funding hurdles, this potential mission and others like it will depend on a steady supply of Pu-238 for propulsion and to power its onboard systems.

FORBES: Jump-Starting A Mission To Interstellar Space

As our knowledge improves, we'll develop new power generation, propulsion, life support and other systems that can support more distant travels.

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