The processing time, in minutes, required for Step 17–23 in the SCNT protocol for operators of each skill level: Beginner, average, and expert.

Half-widths (HW, distance from the confidence limits to the mean for two-sided intervals) are displayed next to processing times.半宽（Half-widths，HW，即双侧置信区间中置信限与均值的间距）将标注于处理时间旁。