initial pack meaning in English

新井砾石充填防砂

Its encoding way is also analyzed in this paper . we adopt sa to produce the initial packing , which ensure the parent generations are choiceness . the crossover ( pc ) can prevent the fitness individual to be abandoned , the probability of mutation ( pm ) can prevent the algorithm is convergent before premature
文中对其编码方式进行分析，采用模拟退火法产生初始布局，保证了父辈解群的优良性，采用交叉概率pc有效地防止具有高适应度值的个体被排挤掉，变异概率pm防止了搜索在成熟前收敛。