alternation number
常见例句
- Examples of quasi-random methods of assignment include alternation, date of birth, and medical record number.
准随机分配方法包括：交替分配，根据出生日期分配及根据病例号分配等。 - In this study, we measured the type, structure, number, seasonal alternation and harm of weed in the turfs major in Poa in Chengdu.
依据成都地区以草地早熟禾为主体的草坪杂草的季节生长发育节律，测定了它们在不同地段的种类、结构、数量、季节更替及其危害。 返回 alternation number