determinant

Level of education is a major determinant of income.

教育水平是收入的一个主要决定因素。

The ruling, though it may yet be reversed, sets aside the principle that biology is the primary determinant of parentage.

虽然这一裁决可能会被推翻，但它摒弃了“生物学是亲子关系的主要决定因素”这一原则。

Even if precisely measured, income data exclude important determinants of economic well-being, such as the hours of work needed to earn that income.

即使经过了精确的测量，收入数据也排除了经济福祉的重要决定因素，例如赚取那样的收入所需的工作时间。

The invention of tools such as the forceps has been determinant steps in the history of childbirth.

镊子等工具的发明是分娩史上的决定性步骤。