Results show that the two stage algorithms of GA and SA offer larger space for searching due to its unequal-lot-size strategy so that satisfactory solution can be easily obtained.

• 结果表明，遗传退火两阶段算法不受等分批限制，产生的各子批大小可以不同，这使得解空间更大，因而得到满意解的可能性大大增加。