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symbols pronunciation

  • how to pronounce symbols on keyboard? | Yahoo Answers
  • https://www.douban.com/note/255806725/
  • [~] tilde
  • [`] accent mark / grave accent / backquote(反引号) backtick
  • [!] Exclamation point
  • [@] at
  • [#] pound sign / hash
  • [$] dollar sign
  • [%] percent
  • [^] caret / hat or fang
  • [&] ampersand (and for short)
  • [*] star / asterisk
  • [()] parenthesis
  • [[]] square brackets, left bracket, right bracket
  • [{}] brace, left brace, right brace / brace or curly brackets 大括号 花括号
  • [_] underscore
  • [-] hyphen / minus / dash
  • [+] plus sign
  • [=] equal(s) sign
  • [|] pipe / vertical bar
  • [] backslash
  • [<] side caret / less than 小于号; left angle bracket , left pointy bracket 尖括号 大于号
  • [>] right caret / greater than, right angle bracket, right pointy bracket
  • [,] comma
  • [?] question mark
  • [/] slash
  • ["] double quote / quotation mark
  • ['] apostrophe / single quote
  • [:] colon
  • [;] semi-colon
  • [.] dot; period, “full stop” or “decimal point” if in English text
  • 数学符号

Book introduction

惠普打印机HP Printer

  • 升级到Mac OS 10.15.7，HP LaserJet M1005 MFP 打印机突然无法使用了，解决方案
  • 步骤一： 删除原来安装好的打印机，下载MAC支持的hp打印机驱动集合包进行安装，点击下载： https://support.apple.com/kb/DL1888?viewlocale=zh_CN&locale=zh_CN
  • 步骤二： 【对于HP LaserJet M1005 MFP，连接打印机系统自动识别并添加打印机，也无需后面的操作。】~~再添加打印机，选择《普通PostScript打印机》，不能选择其他选项，这个很重要。~~
  • HP LaserJet M1005 多功能打印机系列
  • 惠普HP M1005激光打印机 Q2612A硒鼓加粉图解
  • HP LaserJet M1005 MFP多功能一体机硒鼓型号Q2612A(2000页)/X(2500页)
  • 硒鼓比价，硒鼓推荐哪个好
  • HP LaserJet M1005 MFP - 使用扫描功能
  • M1005 可使用两种方法扫描，分别为 WIA（开始菜单->Windows附件->Windows 传真和扫描）和 TWAIN（开始菜单->HP LaserJet扫描->扫描到），其中 TWAIN 只有在安装完整版驱动后才可使用。两种扫描方法功能上的唯一不同之处在于 TWAIN 可将扫描件保存为 PDF 格式。
  • HP LaserJet M1005 MFP怎么扫描
  • 1、打开我的电脑,点击控制面板按钮。
  • 2、进入控制面板以后,点击设备和打印机按钮。
  • 3、选中该打印机,右键点击后选择开始扫描按钮。
  • 4、页面弹出扫描对话框,可以选择颜色格式为彩色以及设置分辨率等。
  • 5、设置完成以后点击下方的扫描按钮。
  • 6、页面进入到扫描进度，等待进度完成。
  • 7、扫描完成后自动弹出导入图片和视频对话框，点击导入按钮。
  • 8、系统自动弹出扫描后保存的文件夹，即可看到扫描的文件了。
  • https://jingyan.baidu.com/article/00a07f38092ef082d028dc32.html

ThinkVision Monitor

Dell LCD monitor D3217H

time and date

SI units and IEC units

  • File Size Calculator
  • To avoid confusion, in the year 2000 the IEC proposed a custom naming and notation scheme for the 2-based units. The new names were created by replacing the second syllable in the old name by ‘bi’ (referring to ‘two’). Therefore an old ‘kilobyte’ is now a ‘kibibyte’ and so on. The new (or rather old) units also got corresponding symbols, so ‘10 kibibyte’ is now written as ‘10 KiB’ instead of ‘10 kB’. The following table shows how the values differ for the two systems:
  • SI units
Full notation Symbol Value
1 kilobyte 1 kB 10^3 = 1000 bytes
1 megabyte 1 MB 10^6 = 1000000 bytes
1 gigabyte 1 GB 10^9 = 1000000000 bytes
1 terabyte 1 TB 10^12 = 1000000000000 bytes
1 petabyte 1 PB 10^15 = 1000000000000000 bytes
  • IEC units
Full notation Symbol Value
1 kibibyte 1 KiB 2^10 = 1024 bytes
1 mebibyte 1 MiB 2^20 = 1048576 bytes
1 gibibyte 1 GiB 2^30 = 1073741824 bytes
1 tebibyte 1 TiB 2^40 = 1099511627776 bytes
1 pebibyte 1 PiB 2^50 = 1125899906842624 bytes
  • SI - International System of Units
  • The International System of Units, or SI (from its French name, “Système international d'unités”), is a system of measurement units, based on the International System of Quantities (ISQ), defined in the ISO and IEC 80000 series of standards Units for electrotechnical technology
  • IEC International Electrotechnical Commission
  • SI (decimal / power of 10) units
  • IEC values (binary prefixes of 2^ / power of 2) for file sizes.
  • SI units (1000 base / 10^3) and IEC units (1024 base / 2^10)

Definition - What does User Acceptance Testing (UAT) mean?

  • User acceptance testing (UAT) is the last phase of the software testing process that verifies whether a product or software is fit for the purpose it was built for in the first place—namely, that it:
  • Fulfills business requirements
  • Can be used by end-users
  • During UAT, people (often from the demographic the software is designed for) test the software to make sure it can handle required tasks in real-world scenarios, according to specifications.
  • UAT is one of the final and most critical software project procedures that ensures developed software is ready to be rolled out to the market.
  • UAT is also known as beta testing, application testing or end-user testing, and it’s the final testing performed after the functional, system, and regression testing stages are over.

vanity URL

A vanity URL is a descriptive, memorable and pronounceable URL usually used to redirect URLs from one location to another. In the simplest terms, a vanity URL is a long URL that has been converted into a customized short link. A vanity URL can also be known as a branded Link or a custom short URL.

实验报告类型

  • 探究性实验:是实验者在不知道实验结果的前提下，通过自己实验、进行探索、分析、研究得出结论，以发现新事物、新规律，从而形成科学概念的一种认知活动。主要环节节：提出问题、猜想与假设、制定计划与设计实验、进行实验、收集证据、分析与论证、交流与合作七个环节。如探究同种物质质量和体积的关系。
  • 测定性实验:是实验者针对已知的实验结果而进行的以验证实验结果、巩固和加强有关知识内容，培养实验操作能力、掌握实验原理为目的重复性实验活动。如测小石块的密度。

M3U8 vs MP4

1.HTML5 直接支持m3u8协议。 2.m3u8其实是一个协议而不是一种视频格式，m3u8里面包括的多是视频块索引。可以通过网络状态自动切换码率。MP4就没有这方面优势了。 3.m3u8允许客户在进行播放时，从许多不同的备用源中下载视频块。 4.m3u8是HLS(HTTP Live Streaming)协议的部分内容。是一种能够通过http报文就能够请求和访问了。 MP4如果要实现在线播放那么就需要RTP协议来实现。两种手段有比较大的区别。 5.更高性能上能够将部分m3u8的播放块切块之后直接加载到服务器内存中，让客户端可以更快的得到数据。 6.m3u8 由于是采用切块技术，那么下载的播放文件 就可以少很多，只有当前播放的部分。这一点用在在线直播上有很大优势。

  • Stream Recorder - download HLS as MP4
  • Offered by: https://www.hlsloader.com
  • Browser Plugin: Video DownloadHelper
  • Offered by: www.downloadhelper.net
  • Without license: Converted videos would hold the DownloadHelper QR code
  • Without Premium status, an HLS download can only be performed 120 minutes after the previous one

常用螺丝规格表