interval age [天] 间隔年龄
Birth spacing is the age interval among the children within one family.
生育间隔,是指在同一家庭中不同儿童之间的年龄间隔。
参考来源 - 以儿童教育成绩为目标的黄金生育间隔分析（研究生论文）·2,447,543篇论文数据，部分数据来源于NoteExpress
Conclusions: There were susceptible age interval and topological sites for large intestine carcinoma. Most of them were adenomatous.
结论：大肠癌的发生具有明显的好发年龄及好发部位，且多数为腺癌。
With such a long interval, it is difficult to determine the age of this fossil.
时间隔得这么久了，很难确定这化石的年代。
The age at death for early child mortality was determined by the mean interval between successive births and the mean age of neonates at registration.
幼儿死亡率的死亡年龄由母亲相继生育的平均时间间隔和婴儿出生登记时的平均年龄决定。
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