gas purge system

this thesis introduces a simplified tail gas purge system, which functions to absorb the harmful elements in tail gas.

介绍了一套简易尾气净化系统，它可以吸收汽车尾气中的有害成分，并且能循环使用而且节能。

network analysis is the key to maintaining an optimized network. proactive

网络分析关键是维护一个使最优化网络，有准备的管理员

From the production of multi-modal transport to nowadays, the transport way has become the best way which save capital.

多式联运自产生以来直到现在的实践证明，多式联运是使最优化理论在运输上得到充分运用节约人类资本的最好方式。

To make as perfect or effective as possible.

使最优化使尽可能地完善或有效。