中文说明：雨流计数法，雨流计数法（又叫塔顶法）是目前在疲劳设计和疲劳试验中用的最广泛的一种计数方法，是变程计数法的一种。
English Description：
Rain flow counting method, rain flow counting method (also known as tower top method) is the most widely used counting method in fatigue design and fatigue test, which is a kind of variable range counting method.