Basic introduction The TTL level signal is used most often because the data is usually expressed in binary format. +5V is equivalent to logic "1", and 0V is equivalent to logic "0" This is called TT...

Definition A glass substrate is a thin glass sheet with an extremely flat surface. There are three production methods: float, overflow down-drawing, and slit down-drawing. Principle A layer of In2O3...

rubber ballRubber ball is divided into ordinary rubber ball, pinball, silicone rubber ball, and polyurethane rubber ball. Used in food, medicine, minerals, machinery, food metal metallurgy, vibrating...

Velocity Uniform linear motion (5 photos) For objects that do uniform linear motion, in different displacements or time periods, the displacement and The ratio of time is a fixed value, and this fi...

Significance Now, with the improvement of my country's industrial equipment level, the level of lubrication and maintenance needs to be improved urgently. Experts have predicted that about 35% of the...

Complete guide Among the portable memory cards used in MP3/mobile phones/digital cameras/digital camcorders, CF cards and SM cards are familiar to everyone, but when it comes to mmc You may not be f...

Explanation of the thermal switch The thermal switch only needs to be connected to a simple and reliable circuit, and it can be easily used in a variety of applications. The following figure shows t...

The principle of electrostatic adsorption When an object with static electricity is close to another object without static electricity, due to electrostatic induction, the inside of the object witho...

Introduction to Flexible Management Flexible management, in its essence, is a "human-centered" "humanized management", which is based on the study of human psychology and behavioral laws , Using non-...

Product introduction The high-voltage generator, also known as the DC high-voltage generator, is the traditional name for the high-voltage power supply. It refers to the high-voltage power supply ma...

Overview Alcohol cotton balls are made from sterilized absorbent cotton balls absorbing medical alcohol, which can disinfect human skin and prevent infection. After repeated experiments, people know...

Main performance Product typeBlack and white laser multifunction machine covered functionsprint/copy/scanMaximum processing formatA4Consumable typeDrum and powder integratedConsumables capacitySCX-D4...

Introduction The ribbon cassette is the ribbon holder, which is a dedicated device for loading ribbons in dot matrix printers. The ribbon/ribbon core is like the ink of an inkjet printer, and the ri...

Encyclopedia business card The English word for multimedia (duō méi tǐ guang pan) is Multimedia CD, which consists of two parts: media and multi. Generally understood as the integration of multiple m...

Composition Typical machinery and equipment are mainly composed of①power part②transmission part③work Part It consists of three major parts. In addition, with the development of science and technology...

Structure composition The card speaker is mainly composed of three parts: speaker, cavity and power amplifier. SpeakerThe speaker (speaker unit) is the weakest device in the card speaker device, an...