narrow-sense heritability

例句：

1. 1. The narrow-sense heritability of this trait is relatively low.
   这种特征的狭义遗传力相对较低。
2. 2. This study aims to understand the narrow-sense heritability of a disease.
   这项研究旨在了解某种疾病的狭义遗传力。
3. 3. The geneticist calculated the narrow-sense heritability of the disease in their population.
   遗传学家计算了他们人群中该疾病的狭义遗传力。