The electronic equipment is widely applied to aircraft electric power system, so power quality problems in AC main power supply system cause more and more attention.

在飞机电气系统中，随着电力电子装置的广泛应用，交流供电系统的电能质量问题受到越来越多的关注。

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In the automotive power supply system, power is one of the main components.

在汽车电源系统中，电源是主要组成部分之一。

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Because in communication system stability and reliability of the power supply is a main requirement, this design insures them through much experimentation.

由于通信系统对电源的一个主要要求是工作稳定可靠，本设计通过大量的实验验证了这一点。

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The internal design architecture of the new PS3 system, from the main semiconductors and power supply unit to the cooling mechanism, has been completely redesigned, achieving a much slimmer and lighter body.

ENGADGET: Sony unveils slimmer PS3: $300, lands in September (updated!)