梯形图语言编辑界面的软件实现

贴片三极管NPN的封装图,以供给需要的同行-Transistor NPN SMD package plans to supply the needs of peers

雨流计数法又可称为“塔顶法”,是由英国的Matsuiski和Endo 两位工程师提出的, 距今已有50 多年。雨流计数法主要用于工程界, 特别在疲劳寿命计算中运用非常广泛。把应变-时间历程数据记录转过90°,时间坐标轴竖直向下, 数据记录犹如一系列屋面, 雨水顺着屋面往下流, 故称为雨流计数法。雨流计数法对载荷的时间历程进行计数的过程反映了材料的记忆特性，具有明确的力学概念，因此该方法得到了普遍的认可。(The rain stream counting method, also known as the tower top method, was proposed by two engineers in the UK, Matsuiski and Endo, for more than 50 years. The rain flow counting method is mainly used in the engineering field, especially in the calculation of fatigue life. Record the strain time history data by 90 degrees, and the time axis is vertical downward. The data record is like a series of roof. The rain water flows down the roof, so it is called the rain flow counting method. The counting process of the rain flow counting method reflects the memory characteristics of the material and has a definite mechanical concept. Therefore, this method has been widely accepted.)

数控机床 多轴插补原理积分算法，实现s曲线加减速原理(Numerical control machine tool multi axis interpolation principle, integration algorithm, to achieve the S curve acceleration and deceleration principle)

逆变v/f控制，输出电压稳定，pscad仿真(Inverter v/f control, stable output voltage, PSCAD simulation)

说明：  数据可视化大屏，用于大屏幕展示，充满科技风的大屏展示效果(Data visualization large screen, for large screen display, full of technology display effect)

以“带行逻辑链接信息”的三元组表作为稀疏矩阵的存储结构；实现两个矩阵相加、相减、相乘运算；运算结果以阵列形式输出。-Sparse matrix computation

matlab中matpower工具箱case，标准的库里面没有33bus，这个是标准ieee 33bus配网matpower case(Matpower toolbox case in matlab, there is no 33 bus in the standard library, this is the standard IEEE 33 bus distribution network Matpower case)

DEA中的index_DEA 模型中的matlab程序。有循环语句(The matlab program in the index_DEA model of DEA. Loop statement)

JJG 649-1990 数字称重显示器检定规程(weight indicator test procedure)

resume samples for fresher