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On September 26, the ±1100 kV UHV DC transmission project from Zhundong to Southern Anhui was put into operation.
The Zhundong-Annan project is the world's highest voltage level, largest trans...[Details]
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O. Introduction
This system effectively combines the microcontroller and FPGA to realize equal-precision frequency measurement and IDDS technology, giving full play to their respective adv...[Details]
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The size of the carrier frequency directly affects the quality of the current waveform and the size of the interference. Therefore, during operation, the carrier frequency value must be correctly s...[Details]
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Last year, Apple announced an independent repair program that allows companies to purchase original Apple parts for iPhone repairs without having to purchase a full Apple authorized service. Th...[Details]
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I have been traveling a lot recently, and I feel that it is really troublesome to drive for a long time without a suitable mobile phone charger. The output of the original car mobile phone charger ...[Details]
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1 Introduction
The EAST poloidal power supply is one of the main subsystems of the tokamak. It provides the necessary engineering foundation and control means for the generation, confi...[Details]
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8 reasons why LED light strips don’t light up 1. The packaging protection of the LED flexible light strip is not perfect, causing the lamp beads to be damaged by impact during transportation. 2...[Details]
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According to reports on the morning of January 10, Beijing time, people familiar with the matter revealed that Apple is pushing to use self-developed components in its devices, including giving up a ...[Details]
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According to the test regulations for power equipment, the grounding resistance of transformer grounding points below 100kVA shall not exceed 10Ω, and the grounding resistance of transformer ground...[Details]
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In the past 2021, new energy vehicles exploded. Let me ask an extreme question: Will internal combustion engines exit the stage of history? I think not, but how can we help consumers solve their trav...[Details]
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Dingdong electronic doorbell circuit diagram
The figure below is the electrical schematic diagram of a doorbell that can make "ding, dong" sounds. It is composed of a time base circuit integrated b...[Details]
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The USB-C charging port, which is widely used in mobile phones, has become an environmentally friendly and energy-saving standard option, but there is one manufacturer that has been reluctant to chan...[Details]
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The reasons for the leakage of lighting circuits are: first, the insulation of the wires or equipment is damaged by external force; second, the long-term operation of the circuit leads to aging and d...[Details]
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Xiaomi will release the new Redmi Note 9 series in India on March 12. Yesterday, foreign media exposed the Redmi Note 9 Pro engineering machine, further revealing the appearance design of this...[Details]
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Servo presses and ordinary presses are two different types of presses. There are many differences between them in working principle, structure, performance, application, etc.
introduction...[Details]
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