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introduction：Use the screen to display text、figure、symbol、A device for graphics or diagrams,It is a perfect display instrument。In the field of computer technology,It is often used as a terminal device for computers，Displays the computers internal data on the screen。The most common display device is the cathode ray tube (English abbreviationCRT)。To plot on the CRT screen、Write，Must have drawn lines、Means of typing and moving light spots。Such as，Light pen、Data input board、trackball、Joysticks and keyboards are common input tools for conversations between people and computers。 figure[Schematic diagram of character graphic display]Character graphics
2015-02-13 Reading quantity 2793
introduction： BGA（Ball Grid Array）：Ball grid array，A type of face array package QFP（Quad Flat Package）：Square flat package PLCC（Plastic Leaded Chip Carrier）：Plastic chip carrier with lead DIP（Dual In-line Package）：Dual in-line package SIP（Single inline Packa
2015-02-13 Reading quantity 2872
introduction： OEM Original Equipment Manufacture 原设备制造 PCE Personal Computer Enclosure 个人电脑外设 PC Personal Computer 个人电脑 CPU Central Processing Unit 中央处理器 SECC SECC` 电解片 SGCC SGCC 热浸镀锌材料 PRC People's
2015-02-13 Reading quantity 2890
introduction： bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Preparations for routine inspections are as follows6Step complete 1．Turn its outer ring and rinse the cage carefully、The junction between the rolling element and the raceway，Any hidden parts of the original oil residue is required to be thoroughly cleaned。After cleaning the bearing, the attached cleaning oil should be drained
2015-02-13 Reading quantity 1667
introduction： Electrochemical oxygen sensors have climate effects in their practical applications、Life and reliability and residual current，For these specific problems，We have adopted different methods to solve it in practice。 1、The effect of climate on oxygen sensors under normal conditions，Changes in climatic conditions(temperature、Fluctuations in humidity and air pressure)Will be stable for oxygen sensor performance
2015-02-13 Reading quantity 2960
introduction：Rapid prototyping（RP）Its an innovative technology，It can take advantage of three dimensions in a matter of hoursCADDesigned graphics directly produce complex parts。Ever since1988After the first rapid prototyping system appeared，More than twenty systems have been developed，Each system has some minor differences。prime，These systems are used in the automotive and aerospace sectors，And then in many other areas，Such as toys、computer、It has been used in fields such as jewelry and medicine。 ◆stereopto-curing（SLA） SLALaw was the first to be commercialized、With the highest market shareRPtechnology，It is light sensitive
2015-02-13 Reading quantity 2908
introduction：Ferrography analysis is a particularly suitable method for identifying and predicting rolling fatigue。Rolling bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]A portion of the lubricating oil is extracted as an oil sample，A high gradient magnetic field is used to make a solid foreign body contained in the oil sample flowing through the magnetic field，Deposited on the glass sheet in proportion to size，To observe the shape of the foreign particle
2015-02-13 Reading quantity 1562
introduction： summarize The third generationDWTSeries of vegetable dehydration dryer．When we manufacture equipment for users，According to the characteristics of the desired drying product．User process requirements，Combined with more than ten years of accumulated experience，Design and make the most suitable for users．The best quality vegetable drying equipment．This series of equipment has been patented。 DWTDehydration dryer is a special equipment developed on the basis of traditional mesh belt dryer，It has strong pertinence。practicability
2015-02-13 Reading quantity 2810
introduction：summarize CimatronE There are a variety of template functions，Different functions can be performed automatically，Improve work efficiency。This paper mainly introduces the application of electrode template。 catalogue What is an electrode template？ How to use the electrode template function to improve work efficiency？ How to call and save electrode templates？ Where is the electrode template stored Related topics Technical number 503.1-Document template
2015-02-13 Reading quantity 2803
introduction：hunhe qiti Mixed gas gas mixture A mixture of several gases，It is a working medium commonly used in engineering。Gas mixtures are usually studied as ideal gases。 Daltons law of partial pressure The total pressure of the gas mixture is equal to the sum of the partial pressures of the constituent gases。And the partial pressure of each constituent gas，It is the pressure at which the constituent gas alone occupies the total volume of the mixture at the temperature of the mixture。The mathematical expression of this law is ＝1＋2＋…＝∑ The composition of the gas mixture&n
2015-02-13 Reading quantity 2799
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