Dynamic QR code: There are two kinds of literal meanings: one is visual code animation dynamic two-dimensional code, that is, moving two-dimensional code, but this two-dimensional code has been redesigned by technical drawing means, for art two Dimensional code, usually used for media promoti…
Why to adopt intelligent electricity safety management system and how to realize smart monitoring with electricity security?
Many people do not understand why they need to set up a smart electricity safety management system, especially for places where fire alarm systems have alre…
Mobile phones are essential personal belongings that gradually replace the original objects of life, including keys, access control cards, credit cards, tickets, etc. How can NFC technology be used in human life through portable devices?
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Due to the characteristics of expansion, low strength and rheology of weak rock in gypsum mine, when using the room-column method to return to the mining body, in order to strengthen and ensure the stability of the stope, it is often ne…
1. Ensure that the liquid in the smart flowmeter sensor is full. The sensor can be installed horizontally, inclinedly or vert…
The Wiegand protocol is an internationally uniform standard and is a communication protocol developed by Motorola. It is suitable for many features of card readers and cards involving access control systems. It comes in many formats, and the standard 26-bit should be the most common format. I…
Model NO.: ES2209. IS
Parts: V Leg and Tubular Construction
FAW Bus Company decided to produce passenger cars in Changchun. The entire vehicle base plans to start construction in April 2009 and start production in December. At present, the production process of the vehicle base has been determined.
According to the Ministry of Commerce on…
Model NO.: FA-5000-2
Size: 6.2*2.2*2.2
The process of a dyno test on a Liebherr engine
Through the repair results of several traditional welding repair methods at the defects of machine tool castings, the reasons for the poor repair results of machine tool castings are analyzed. Through the research on the repair results of the casting defec…
The domestic crude oil market was far less exciting than last year. In the overall shock in the first half of the year, the international crude oil price was in the fluctuation range of 70 US dollars/barrel to 80 US$/barrel for most of the time. This narrow range of oscillation also made domes…