This paper discusses production technique, development prospect of carbon nanotube, and research direction and new tendency at home also introduces.

本文对碳纳米管的生产技术、发展前景进行了论述，并阐述了国内碳纳米管的研究方向及最新动态。

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The article analyses the characters and tendency of modern logistics, and point out the direction of the development in logistics market and the methods of preserving the logistics market.

本文在分析现代物流特征和发展趋势的基础上，指出了物流市场开发的方向和物流市场维护的策略。

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The field works indicate that the development of the carbonate interlayers has the tendency of increase in terms of the layers and carbonate content to the southern direction of the basin.

野外工作表明辽西地区义县组碳酸盐岩夹层的发育向盆地的南侧有层数增多碳酸盐含量增加的趋势。

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