You impose a major disservice on both human and canine communities if you produce another generation of skittish or bad-tempered animals. 如果繁育出的子代幼犬有气质上或是身体上的缺陷，无论对人还是对狗，都是重大的伤害。
Considering the disturbance of due dates of jobs in scheduling, we design a new crossover which makes each machine keep the critical sub-schedule in the generation of offspring. 考虑工作交期可能带来的干扰，所设计的操作元在生成子代的过程中，将保持最关键的一段子排程。
Comparison study on performance among albino rainbow trout and Donaldson rainbow trout and their filial generation were studied. 本文对引进种日本金鳟和道氏虹鳟及其杂交后代的生存力及稚鱼的生长速度等进行了比较研究。
