The development situation of PTT fiber at home and abroad, the developed fiber variety, textile style and performances were summarized.

综述了PTT 纤维的国内外开发状况，已开发的纤维品种、织物风格和性能。

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Based on a lot of examples, the characters of the buildings in the private gardens in Beijing are analyzed, and their general style is explored and summarized.

结合大量具体实例，对北京私家园林的各类型建筑的基本特点进行分析，并对其整体的风格特征作了探讨和总结。

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The frequently happened failures of nc machine tool were analyzed by the system; the principle of failure was summarized and demonstrated by a visual style.

系统通过分析数控机床常见故障，总结出故障发生的原理，并运用直观形象的方式演示出来。

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