The rapidly quenched copper alloys containning high density vacancies produced helical dislocations during aging. 具有高浓度空位的急冷合金在时效过程中产生了蜷线位错。
The third part gives relevant legislation suggestions and strategies in three aspects in the light of the shortages of demurring patent tort. 四是其他抗辩事由，包括起诉权和诉讼时效制度。
