icon defines a new position of the peak beginning. In the event the peak beginning is shifted before the end of the preceding peak, a vertical line will separate those peaks and its position will coincide with the new peak beginning. If the peaks are separated by a vertical line or connected at the valley and the peak beginning is shifted closer to the apex, the peaks will be separated.
图标，定义一个峰开始的新位置。如果峰开始的移位提前于之前的峰开始，一个垂直线将分隔那些峰，且它的位置将符合新的峰开始。如果峰通过一个垂直线或在谷上连接进行分隔，峰开始移位应靠近顶点，峰将被分隔。
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