The general developing situation of compressed natural gas (CNG) technology is introduced in this paper.
压缩天然气（CNG）是专用于汽车替代汽油的燃料。
This paper introduces a general situation of characteristic resources about celebrities in Wuxi library and the present situation of tidying, developing and using those resources in recent years.
论文介绍了无锡图书馆馆藏名人特色资源的概况以及近年来整理、开发、利用的现状。
It introduced the general situation, intension and developing trend of CAE for plastics extrusion dies from technology and application point of view.
从技术及应用的角度介绍了塑料型材挤出模cae技术的概况、内涵及发展趋势。
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