过程时间

• Through the analysis of the relevant historical data from the year of 1952 to 1995 , the paper presents the increasing trend 、 characteristics and present situation in the height and weight of the youngsters in hunan and provides some reference material for promoting the growth and development of the people in hunan province
  通过对1952 1995年有关历史资料的分析，发现湖南青少年身高、体重呈现加速增长趋势，增长过程时间长，增长量大、速度快，增长量年龄曲线呈钟形，但发育、成熟期前移，青年段生长停滞，瘦长型体格增多。