The distributionrates of dry matter of its organs changed greatly during its growth period.
车前各器官干物质分配率在生育期间有较大变化。
2
The appearance of pellets were observed. The sum of pellets and the distributionrates in different sections of alimentary canal were counted.
观察微丸外观性状并计数，计算给药后不同时间点其在各段消化道的分布率；
3
To analyse preterm birth rates worldwide to assess the incidence of this public health problem, map the regional distribution of preterm births and gain insight into existing assessment strategies.