大功率电子设备发热量大，直接工作在恶劣的空间热环境，其热设计十分复杂。
Thermal design of near space high-power electronic equipment is very complex because it works in the rigorous space thermal environment.
其应用前景十分广阔，可以广泛应用于导航以及民用电子设备的毫米波频段大功率固态源上。
It has considerable application prospects and can be widely used in navigations and high-power solid-state source of civil electronic equipments on millimeter wave band.
由于中大功率的电力电子设备在电网中占很大的比重，因此高功率因数的三相可逆变流器的研究已成为当今国内外研究的一大热点。
Due to the prodigious proportion of medium and big electronic equipment in power line, the research of three phase reversible converter is becoming the researching hotpot on international and native.
在开关频率较低的情况下，大功率PWM变换器的谐波可能会更大，并对电力电子设备造成损坏或产生电磁干扰影响通讯。
The harmonic distortions of the high power PWM converters increase more with low switching frequency, which may destroy the devices used in the system and result in electromagnetic interference (EMI).
在开关频率较低的情况下，大功率PWM变换器的谐波可能会更大，并对电力电子设备造成损坏或产生电磁干扰影响通讯。
The harmonic distortions of the high power PWM converters increase more with low switching frequency, which may destroy the devices used in the system and result in electromagnetic interference (EMI).
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