构成比率 meaning in Chinese

component proportion ratio
component ratio

Objective to explore the causes and composing rate of constipation after fracture
摘要目的探讨骨折患者便秘的发病原因和构成比率。
The birth , death and natural increase figures in the frequently asked statistics section are compiled using known births and known deaths . birth rate and death rate are calculated by relating the known births and the known deaths in a year to their corresponding mid - year population
载于常用统计资料部分的出生、死亡及自然增长数字是使用所知活产婴儿数目和所知死亡人数编制。出生率及死亡率，是以一年内出生及死亡的所知人数，分别与同年年中的人口数字为分母构成比率。