“区间的”用英语怎么说？

不同地区间的经济不平衡economic inequalities between different areas鲍尔曼曾研究过道格拉斯冷杉种子产量地区间的差异.Bolman has studied regional variation in Douglas fir seed yields.置信限是指置信区间的界限.Confidence limits are the upper and lower limits of the confid...