学习C++的经典书籍，一定要读读的！请画几个小时读下这本书，你会获益匪浅的 -Learning C++, classic books, be sure to read it! Please draw the next few hours reading this book, you will benefit from the

轴承查表计算，使用与机械轴承专业，直接输入数据，就能查处结果-Bearing lookup calculated using specialized machinery bearings, direct input data, the results can be investigated