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According to The Verge, the U.S. Customs and Border Protection recently tweeted that it had seized 2,000 "fake AirPods" from a flight from Hong Kong. If they were sold at authentic prices, the...[Details]
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Nanjing Hexin Automation Co., Ltd. (hereinafter referred to as "Nanjing Hexin") was established in 2017. Its headquarters is located in Nanjing Xingang National Economic Development Zone. It has es...[Details]
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As a new type of light source, LED has attracted wide attention for its energy saving, long life and no pollution. However, from the perspective of the domestic market, it still takes a long time...[Details]
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With the development of consumer electronics, the proportion of power consumed by various power supplies such as adapters in global energy consumption has increased dramatically, becoming a "big en...[Details]
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This article takes VICTOR VC9806+ as an example to briefly introduce the multimeter and give some usage tips. Digital meters are commonly used measuring instruments. From a functional perspective, ...[Details]
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On October 14, Jierong Technology released its performance forecast for the first three quarters of 2021. The company's net profit in the first three quarters was 6.5 million yuan to 9 million yuan, ...[Details]
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Recently, a steel needle has stirred up the power battery industry. Before March 2020, power battery puncture testing remained only on paper, and most people rarely saw this scene. However, sin...[Details]
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1. Main power interface (overvoltage and overcurrent protection) 2. Serial interface 2-way 5-wire RS232 level DB9 interface, 4-way TTLT level expansion interface A direct serial line ...[Details]
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introduction
Due to various reasons, there are current harmonics in the power grid. Due to the existence of power grid impedance, the harmonic current flows through the power grid impe...[Details]
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Pharmaceutical manufacturers need to focus on quality and cost-effectiveness. The quality of samples is usually assessed in the laboratory. The FDA has encouraged the pharmaceutical industry to use on...[Details]
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//====================================================== Common options for gcc and Linux gcc How to use gcc gcc file name gcc common options gcc -v: Check the version of the gcc co...[Details]
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Huawei Technologies Co., Ltd. recently added a number of new patent information, one of which is related to artificial intelligence technology, named "Method and device for analyzing multiple types o...[Details]
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According to the characteristics of LED driver power supply , the current rules of China's power grid and the requirements of exporting countries, we should pay attention to the following factors...[Details]
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1 What is a motherboard?
The motherboard is the largest component in the computer. It is rectangular and densely covered with various components, interfaces, and slots. Various peripherals...[Details]
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Introduction
Control network generally refers to a computer network system characterized by controlling "objects", referred to as Infranet (infrastructure network). It is at the bottom of the...[Details]
Test/Measurement
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