basic electrical tools

Basic Electrical knowledge Q A (especially for beginners)Name explanation:1. Three-phase alternating current (AC): An electric power system consisting of three AC circuits with the same frequency, equal potential amplitude, and Mutual Difference of 120 °.2. One-time device: the device directly related to power generation and distribution is called one-time device. Including various high voltage circuit bre

short-circuit current. It has a well-developed Arc Extinguishing structure and sufficient cut-off capability.5. load switch: the construction of the load switch is similar to that of the classified isolation switch, but a simple arc extinguishing device is installed. It also has an obvious disconnection point, with a certain degree of cut-off capability, can be operated with load, but cannot directly disconnect the short-circuit current, if needed, it depends on the High-Voltage Fuses connected

The most comprehensive Java byte operations, conversion and hexadecimal conversion tools for processing basic Java data, common tools for streaming media and underlying java development projects, and javabyte tools Conversion and hexadecimal conversion tools used to process

Introduction: Conversion and conversion manipulation tools for basic data processing in JavaFirst, the realization function1, int pre-byte mutual transfer2, int and byte[] turn each other3, short and byte to turn each other4, short and byte[] mutual transfer5, 16 bit short and byte[] mutual transfer6, long pre-byte[] Mutual transfer7, byte[] and InputStream Mutual transfer8, byte and string transfer9, 16 bi

Google guava basic tools and googleguava tools Recently, I used the google cache in the project to learn about some tool classes in guava and the operations on the set. The packages are compared and I don't have time to write them myself. I will mark them first, The reference document is as follows: Http://macrochen.iteye.com/blog/737058 Http://my.oschina.net

, can not move up and down;Rotate the tool : Move the mouse to the 3D object, rotate the aperture;2. Stitching Pictures--combine multiple images into a large image (auto align app)(1) Import PicturesAt the same time, multiple images are imported into PS, directly select multiple pictures, and then drag into the PS;This is a photo of the living room taken with the camera :(2) Drag multiple layers to the same layerunlock layer : Unlocks the layer of the first picture;Drag a layer : Drag the pictur

Basic Android tutorial -- 8.3.1 three graphic tools In the last two sections, we learned about Drawable and Bitmap. They all load images. In this section, we will learn about drawing-relatedSome APIs are Canvas, Paint, and Path )! This section is very important andBasics of custom View ~ Okay. Let's talk about the content in this section ~Official API documentation: Canvas; Paint; Path; 1. Detailed descr

free of charge for the community. This is the case for the set created by Directory Service MVP Joe Richard. You can download it from joeware.net/frew.ls. You will find a large number of tools with different functions. I have repeatedly used three tools: adfind, admod, and oldcmp.Adfind and admodAdfind and admod are similar to dsquery and dsmod. adfind is a command line query tool for Active Directory. adm

16 times times. Figure 2-0-2-bit image magnified 16 times times Blur In the Flash animation production process, will use a lot of vector graphics. Although there are a series of powerful specialized vector graphics production software, such as Corel Company's CorelDRAW Software, Macromedia Company's Freehand Software and Adobe Company's illustrator software, The use of flash itself vector drawing function will be more convenient, faster. In this chapter, we will draw some simple vector grap

A better alternative to basic command line tools The command line may sound scary sometimes, especially when you are new to it, you may even have a nightmare about the command line. Gradually, however, we will realize that the command line is not so scary, but very useful. In fact, no command line is exactly what makes me feel crashed every time I use Windows. This is because the command line tool is actual

Through the previous tutorials, we gradually learned the basic application of photoshop. this time we will introduce you to the application of advanced tools through several examples. What is an advanced tool? Photoshop advanced tools are collectively referred to as "layer style, RGB channel, built-in action, ALPHA channel, change constituency" and other function

Android has been out for a long time, online tutorials also have a lot, afraid to forget later on the online Daniel share the knowledge of their own learning, but also record, if you can help others, that is better but!In view of the IDE tools now, idea has occupied half of Java, Android Studio has gradually become the first choice of Android development tools, I learned when the choice of using Android Stu

In the course of my research on the technology of Ethernet square, due to the relatively few data, it took a lot of detours. So here we will not first introduce the grammatical structure of solidity, but will be in the next phase, from the actual combat, to introduce you to Geth, browser-solidity, mist these three tools, and in the process of constantly explaining the basic concept of the ether. Through the

Android learning notes ①-Basic installation of android tools, Android Android has been out for a long time, and there are a lot of online tutorials. If you are afraid of forgetting it later, you can learn the knowledge shared by the online experts and record it. If you can help others, that's better! In view of the current IDE tools, IDEA has occupied half of jav

This course focuses on the basic tools in Kali, which are called basic tools because they are very powerful and important for future work. As a security practitioner is an indispensable helper, the tools are mainly Netcat, WIRESHARK, TCPDUMP.Course Catalogue:Netcat Introduct

Design of 10 basic HTML5 animation tools, HTML5 has become the most popular programming language for web developers. Robust programming languages have great capabilities to generate better web content. HTML5 has seen rapid growth in the past three years. The new html5technology is introduced. better.html 5 is a browser like Chrome that supports Firefox, IE, and many other technologies. Today we have listed

Label: Penetration Testing Tools sqlmap Basic Tutorials Free Test URLs Http://testphp.vulnweb.com/artists.php?artist=1 Tags: SQL injection penetration test Sqlmap 2014-11-12 10:15 62345 People read comments (0) favorite reports Classification:Information Security (1) Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced. Directory (?) [+] Reprint Ple

PHP Development Tools PHP Basics TutorialPHP Development tool PHP Basic Tutorial, the following is the brother even PHP training small compilation:PHP IDEPHP IDE is also a lot, mainly from several aspects of filtering:Cross-platform (can run simultaneously on Windows,mac or Ubuntu)Version control (svn,git)File history (automatic recording of historical changes)Multi-lingual support (at least html+css+java

The basic HTML5 Animation toolToday, the most popular language in WEB development is HTML5 , which helps developers present diverse content to their users. In the past two or three years, we have seen the development of HTML5 , it gradually in the network of the World accumulated fame and popularity (www.itxdl.cn), HTML will often bring us new technologies and features, So that the front-end technology continues to grow strong. HTML5 's popularity i