求翻译：DC-DC变换器是便携设备中广泛用到的电源管理芯片,广泛应用于远程及数据通讯、计算机、办公自动化设备、工业仪器仪表、军事、航天等领域，涉及到国民经济的各行各业。是什么意思？

dc-dc converters are widely used in portable devices, power management chip, widely used in remote and data communications, computer, office automation equipment, industrial instrumentation, military, aerospace and other fields related to the various industries of the national economy.

scalers DC DC - portable device is widely used to power management chip that is widely used to remote and data communications, computer, office automation equipment, industrial instrumentation, military, aerospace, and related areas such as the national economy and industries.

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DC-DC converters are widely used in portable equipment power management IC, widely used in tele-and data communication, computer, Office automation equipment, industrial instrumentation, military, aerospace and other fields, involving various trades and industries of the national economy.

The DC-DC converter is the power source management chip which in the mobile equipment widely uses, widely applies in long-distance and the data communication, the computer, domains and so on office automation equipment, industry instrument measuring appliance, military, astronautics, involves to nat