system pack meaning in Chinese

操作系统包
操作系统程序包

Information technology - cabling systems pack
信息技术.电缆敷设装置
In chapter 2 , by defining some concepts , such as constraint unit , constraint aggregate , constraint relation , constraint method , constraint chain , constraint degree and associate constraint sub _ aggregate etc . the basic constraint factors that affect the complex pipeline system packing are fully analyzed in the first . in the following , a mathematical modelling method used for complex pipeline system " optimization packing design is brought forth based on the optimization target decomposing , then a mode of generalized proposal field of the complex pipeline system packing design is constructed . finally , a variant genetic algorithm for the solution of the mode mentioned above is derived
第二章，通过定义约束元、约束集、约束关系、约束方法、约束链、约束度、关联约束子集等概念，对影响复杂管线系统规划布置的基本约束因素进行了较为全面、系统的分析；探讨了基于目标分解的复杂管线系统优化布置问题的数学描述方法，建立了面向复杂管线系统布置的广义布置方案场模型，并在此基础上设计了求解该模型的变异遗传算法。