From the point of view of purchasing and distribution, each industry is a value chain system composed of multiple sales projects.
从购销角度看，每个行业都是由多个销售工程构成的价值链系统。
2
The proposed multiple petroleum system is one of the results of nativeness in the system, with wide distribution in China.
复式石油系统的提出，是石油系统本土化的结果之一，它在中国有广泛的分布。
3
The use of the multiple functions of switch in access-control can realize the distribution security system, and implement the security management for the network and the users.