结果糖尿病大鼠视网膜中的NGB分布逐渐增加后趋于稳定。
Results The expression of NGB increased gradually in retina of diabetic rats, then the tendency to be stable.
新生儿窒息率下降一定程度后趋于稳定，围生儿病死率趋于稳定。
The incidence of neonatal asphyxia decreased to a certain degree and tended to be stable. So did the perinatal mortality.
在植物生长初期，根系生长作用可提高植生混凝土的透水能力，但2～3月后趋于稳定；
The permeable ability of the plant-growing concrete can be increased by the root growing effect at the beginning stage of the plant growing, which goes to be stable after 2~3 months.
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