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1. The DC power supply system is essential for maintaining the stability of the electrical grid.
直流电源供应系统对于保持电网的稳定性至关重要。
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2. The DC power supply system is widely used in various industries due to its high efficiency and reliability.
由于其高效率和可靠性，直流电源供应系统在各个行业得到了广泛应用。
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3. The DC power supply system is designed to provide stable and reliable power to electronic devices.
直流电源供应系统旨在为电子设备提供稳定可靠的电力。