ng加载动画特效

常用元器件PCB封装大全，包含各种常用器件的封装，给设计带来方便-Encyclopedia of components commonly used PCB package, including a variety of commonly used device package, designed to bring convenience to

说明：  y注册表单是一款拥有三种不同风格的表单验证表单，可以有效验证字符串(The y registration form is a form validation form with three different styles, which can validate strings effectively.)

说明：  关于下雪的代码是用python实现的，用于学习交流的(The code about snow is implemented in Python for learning and communication)

主要介绍USB软件狗的加密算法原理以及ET299软件狗的编程加密-Mainly introduces the USB software dog encryption algorithm principle and the dog" s programming encryption software, ET299

说明：  采用电压外环电流内环，双环PI控制三相并联BUCK电路。(Voltage outer loop current inner loop, double loop PI control three-phase parallel BUCK circuit.)

A set of graphics and chart controls based on Java and Android. At present, this set of charts mainly includes the following components: gird chart line charts, including single line charts and stick charts, including basic bar charts and special bar charts to support the display of K-line or candle stick-chart branches. Pie chart or pizza chart includes basic pie chart and segmented pie chart radar chart or spider web chart including area radar chart

ABAQUS二次开发，复合材料损伤UMAT(ABAQUS secondary development of composite damage UMAT)

说明：  从地球到火星的模拟轨道运算及以燃料消耗为目的的优化。(Orbit simulation and optimization from earth to Mars.)

说明：  智能企业建站系统，该系统能让用户在短时间内迅速架设属于自己公司的企业网站。建站系统易学易懂，用户只需会上网、不需学习编程及任何语言，只要使用该系统平台，只要会打字，即可在线直接完成建站所有工作。(Intelligent Enterprise Station Building System, which enables users to quickly set up their own company website in a short time. Station-building system is easy to learn and understand. Users only need to go online, do not need to learn programming and any language, as long as they can use the system platform, as long as they can type, they can directly complete all the work of station-building online.)

说明：  倒计时计时器，用于会议，演讲，大小团体活动计时功能。(Countdown timer, used for meetings, speeches, small and large group activities timer function.)