平均重量比表面积
Mean weight soil specific area
植物平均重量与密度关系
mean tree weight-density relationship
重量平均沸点
weight average boiling point
linear antenna array
external balance system
重量平均分子量
weight average molecular weight
weight-average molecular weight
transonic area rule
重量平均聚合度
weight-average degree of polymerization
重量平均链长
weight-average chain length
周期量的平均值
mean value of periodic quantity
X光齿槽骨丧失年平均量
yearly radiographic alveolar bone loss