②由图像像素的累积计数、 采集 时间及定标系数确定像素的放射性浓度 ，其关系可以一经验公式表示。
The radioactive concentration of lesion pixel depended on the pixel counts, the acquisition time and CF, and the relationship was expressed with an empirical formula.
注意，我们当计数器i达到1的时候返回了累积的值。
Note that we return the accumulated value when the counter I reaches 1.
故障计数标志开始累积，当达到设定的累积量后，故障报警。
The trouble counter starts accumulating, and failure warning sets in when reaching the pre-set cumulant.
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