birth defect造句

1、Congenital——a birth defect that is not inherited
先天的缺点，并不是因为遗传而获得的特性。

2、Birth defect is one of the key elements that seriously affect the quality of population.
出生缺陷是影响人口出生质量最重要的因素。

3、In the first group birth defect was found in 6 children. Total incidence rate amounts to 76%.
在孕期接触氯乙烯组中发现先天性缺陷子女6人，总计发生率为76%。

4、Prenatal Screening can be helpful to lower birth defect and improve the quality of the new born.
产前筛查有助于降低缺陷儿出生，提高出生人口质量。