系统学

Last years saw a rapid development in paleoclimatology.

近年来古气候学研究的迅速发展，大大增进了人们对全球气候系统或地球系统的了解。

In addition, the relationship of the spore morphology and taxonomy in Polypodiaceae subfam. Polypodioideae was discussed in this paper, providing more informative data for the systematics and palynology of Polypodiaceae.

本文还就孢子形态及其与该亚科植物的系统分类和演化关系进行了讨论，为水龙骨科的系统分类及孢粉学研究提供了资料。

The application of GIS and computer technology in building SIS has been the focus as well as frontier of pedology in terms of foreign or domestic in recent years.

利用地理信息系统技术和计算机技术构建土壤信息系统是近年来国内外土壤学的研究热点和前沿之一。

Futhermore, it also provides a good platform for large scale exploitation of the graphics system.

通过对该系统的设计与开发，为图形学的研究提供了一个直观、便捷的集成环境，也为今后图形系统的大规模开发提供了一个良好的平台。

During the design process of chemistry teaching system , the teacher should recompose and design the chemical knowledge according to his own special feature, the actual situation of students and teaching conditions, develop it by the arrangement of terms, chapters, lessons in turn, and make it a information network.

用系统论的观点分析说明了化学教学的要素和设计流程。在化学教学系统的设计过程中，教师要根据自身特点、学生实际情况和教学条件把化学知识重新组合、设计，按学期、章、课时的层次依次展开，使之成为一个信息网络。通过最优化的教学设计，能使教和学协调、和谐，化学教学系统运行通

From the view of semeiology, the product is a system whose purpose is to tansmit the culture value of the product, including the practical value and the symbol value of the product.

本文立足于工业设计需要解决的主要问题：造型设计问题，采用符号学的观点，围绕"人"这个主体和目的，对笔记本电脑造型设计符号系统进行分析尝试，强调造型设计是一个目的构成、也是系统的一部分。

From the publication of the first braid-based PKCscheme due to Ko et al. in 2000, the research on braid-based PKC has been undergoingsome sinuation and keeping active.

自从Ko等人于2000年提出基于辫群的公钥密码系统以来，基于辫群的公钥密码系统的发展虽然经历了不少曲折，但目前仍然是公钥密码学研究领域中十分活跃的主题之一。

At the same time, it puts out the theory of multi-space of technology action, analyses the super circulated procession of technology evolution and its pattern as well as the situs structure of technology orbit space, reveals the law and controlling method of technological evolution.

同时，还提出了地球表层学视野技术活动的多维空间的概念。分析了技术进化的模式、超循环过程和技术系统进化的形式模型及其技术轨道空间拓扑结构，并进一步揭示了技术系统进化的规律和控制方法。

Finally, a design example of optical system used for smog attenuation testing system is given to illustrate the effect of spherical aberration on the image beam waist.

最后通过激光羽烟衰减测试系统中聚光光学系统的设计实例说明了球差对高斯光束像方束腰的影响。

The initial value susceptivity and the longest forecastble time, the least number of independent variable , the chaos degree and the average forecastable time of the system have been calculated.

并从混沌学的角度讨论了煤自然氧化时间序列的混沌特性、系统独立变量的最小数目以及系统的混沌度等混沌动力学参数。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。