With the development of science and technology and the advent of the era of intelligent buildings, weak electricity and high-power engineering have received more and more attention, but how many people know their differences; Â Weak current : Weak current is very common. Almost all electronic pr
Read more1. The ground wire is grounded to zero potential and is grounded nearby. 2. The ground potential of the neutral line is not necessarily zero. The neutral line is grounded at the substation and there may be a potential difference from the local ground. 3. Because the neutral line and the live line
Read moreThe drone came into public view and appeared in variety shows such as “Where is Daddy?â€. In February 2015, singer Wang Feng’s news on Zhang Ziyi’s birthday party using a drone to send a proposal for a diamond ring was even more attractive. The eyes of ordinary people. Si
Read moreAll along, "de-powering" is a hot topic of debate. In fact, the current market said that "de-powering" is not really without power. It should be said that "DOB" is a technical term that is neither strange nor mature. At present, DOB technology is gradually being accep
Read moreSingle chip microcomputer STM32L151CCU6 Rongsheng test - lowercase jpg-233K The outer diameter of the probe domestic PA50-F small four-jaw gold-plated needle is 0.68. The total length of the needle is 16 One-piece inductor COB Light COB LED par lig
Read moreForeword Smart technology has brought convenience but it has also taken extra care. As a parent, I expressed my annoyance at the terrible children who look at the tablet, watch the cell phone, and watch TV! A three-year-old child, obsessed with the screen all day, simply lo
Read moreIn recent years, with the widespread adoption of the Internet and the gradual deepening of smart homes, routers have undoubtedly become essential electronic devices for every household. With more and more manufacturers involved in this product area, routers are not only more
Read moreAfter the first successful testing of the 5G communication network in Europe, the company was ready for commercialization, and it is only now ready for the completion of the 5G technical standard. In mid-October, Deutsche Telekom conducted a 5G reality test with partner Huawei in Berlin, using Ma
Read moreThe US Department of Defense Advanced Research Projects Agency (DARPA) announced that they will send robots into space to repair and maintain satellites within a few years. DARPA recently launched a "Joint Implementation and Service Action Alliance." DARPA hopes all major industry playe
Read moreThe calculation of the point source or the unobstructed spherical propagation in the free field is much simpler than the acoustic calculation inside the room. We generally think that the frequency range of the human ear is 20-20 kHz. In such a wide frequency band, the transmission patterns of dif
Read moreIt has been almost a year since Sony introduced the psvr heads, and this product has rapidly become the most popular high-end VR platform after its launch. Next month will be the first anniversary of the first year of the PSV's first year of display, so Sony, like Oculu
Read moreMaanshan City regards manufacturing as the foundation of the market, vigorously implements the strategy of building an industrial city, conscientiously implements the decision-making and deployment of the central and provincial governments to speed up the building of "manufacturing powerhouse
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