中文摘要：

讨论了（s~r）×s~n部分因子设计的估计能力问题,其中r（≥2）是一个整数,s是一个素数或素数幂.给出了（s~r）×s~n部分因子设计具有最大估计能力的一个充分条件,并证明了类型为0的最小混杂设计在估计能力准则下也是较好的设计.

英文摘要：

This paper studies the issue of estimation capacity of（s~τ）×s~n fractional factorial designs,where r（≥2）is an integer and s is a prime or prime power.A sufficient condition such that an（s~τ）×s~n factorial design has maximum estimation capacity is obtained. Moreover,it is shown that minimum aberration designs of type 0 are expected to be a good choice under the criterion of estimation capacity.