Recent Posts

Lecture 3 The Effect of Magnetic Fields on Moving Charges-20…

Lecture 3 The effect of the magnetic field on the moving charge-The general review of the physical and difficult points of the 2013 college entrance examination. As shown in the figure on the right, a beam of electrons enters the solenoid along the axis, ignoring gravity, and the electron movement i ......

Eggshell bunny handmade

Handmade materials: eggshell , pigment, sponge paper , white plush ball, hair root , double-sided tape Bungee Dock LineMIANYANG BIGANT TECHNOLOGY CO LTD , https://www.bigantech.com ......

Engraving Printing Guangling Ancient Engraving Agency 4 Expe…

Many of the "Jiangsu Week" performances and "intangible" exhibitions are also from Yangzhou. The reporter learned yesterday that Yangzhou engraving and printing, Yangzhou lacquerware, Yangzhou paper-cutting and other traditional Yangzhou craftsmanship will be demonstrated on th ......

The purpose and function of metallographic microscope

The purpose and function of metallographic microscope Metallographic microscope is mainly a professional instrument used to observe metallographic structure. It is specially used to observe the metallographic structure of opaque objects such as metals and minerals. These opaque objects cannot be ......

Breakthrough in e-paper technology, tablet PCs can be rolled…

One of the plots in Spielberg's movie "Minority Report" is this: A prospective policeman rushed into the Washington subway to avoid the hunter. A traveler by the side is looking at an electronic newspaper as thin as paper, showing the contents of "USA Today". A few seconds l ......

Notes on Karl-Fisher method moisture analyzer

Karl Fischer titration method can be applied to the determination of water content in various organic and inorganic substances. Due to the differences in the properties of various compounds, they can be divided into two categories: direct measurement and non-direct measurement. The main organic a ......

How to control the internal temperature and humidity of the …

The above mainly introduces the working conditions of various components in the equipment when the constant temperature and humidity test box is tested at a temperature above 89 degrees. Now we will explain the control method and humidity control method when the test temperature is below 89 degree ......

Application of PLC in cement industry

Cement plant production process automation control includes sequence control and process control. Sequential control is mainly to realize the group start, stop and interlock of the motors and electronic control equipment that enter the PLC in the whole plant, etc .; the process control is mainly t ......

Brief Introduction of Refractive Screen Printing Technology …

Refractive screen printing technology for packaging printing In recent years, the refraction screen printing technology is a new star in the packaging screen printing family. The traditional refraction effect is generally to first make a copper-zinc plate with a refraction texture, and use a roun ......

See how foreign printing companies can achieve the perfect p…

Pilots must carry flight maps and aviation manuals with each flight. Different aircraft types require different flight routes, different flight times and different flight maps. In the United States, almost all flight maps and aviation manuals are printed and printed by Jeppesen, a Boeing company ba ......