用于计算平面应力的Fortran程序源码-Used to calculate the plane stress of the Fortran source program

Austenitic stainless steel device with multi-acid stress corrosion and protection

小波分解重构技术在金属应力腐蚀方面的应用-Wavelet decomposition and reconstruction in the application of stress corrosion of metal

环境污染水资源紧张农村打井取水情况较为普遍现有的三极管电路和浮球开关水位控制器故障率较高三极管电路构成的控制元件常出现的故障是抗干扰能力差会使三极管误动以浮球开关为形式的控制元件由于浮球的连接线经常会磨断以及开关触点的腐蚀和氧化故障率也较高且水井水量不足水泵长时间空抽容易毁坏电机。 本文比较成熟的电机抽水控制程序及说明，供您参考。-Environmental water stress is more common in rural