样本中位数 meaning in Chinese

sample median

The figure is then compared with the wqo level of 180 per 100 ml . the wqo for bathing beaches has an interesting history . when the epd first took over the beach water quality monitoring programme in 1986 , the water quality objective in use stated that " the level of
1986年环保署接管泳滩水质监测工作初期，当时沿用的水质指标订明以最近5次连续抽取的海水样本中位数计算，每100毫升海水中的大肠杆菌数量不应超过1 , 000个。