form constancy

Analysis of Similarities and Differences between American Standard and Chinese Standard of Shape and Position Tolerance;

关于形状和位置公差的中美标准异同浅析

Research on relations between the plane shape of mining pit and its stability;

露天采矿矿坑形状与矿坑稳定性的研究

Influence of Nozzle Shapes on Ability of Sand Blasting;

喷嘴形状对喷射能力的影响

This paper appraises the establishment and development of the form tolerance and position tolerance in developed industrial countries and ISO.

对形状和位置公差标准的国内外发展状况进行了评述与分析 ;指出了各时期形状和位置公差的结构特点 ;说明了形状和位置公差标准的产生、建立和发展是由科学技术、工艺技术及测量技术决定的 ,并与生产紧密相

This paper discussed the function of emotion transfer by color and form,and then analyzed its influence on the festival gifts packaging design.

阐述了色彩与形状在情感传递方面的作用,并就其对节日礼品包装设计所带来的影响进行了分析与探讨。

Using the principle of Projectiv e geometry and Analytic geometry,we have intact analysed about the cut and hand in line of taper and Geometry proved the form produced by the special-position -leve and the general-position-level.

利用射影几何和解析几何的原理对圆锥截交线进行了完整的分析,对特殊位置截平面与一般位置截平面产生的截交线的形状进行了几何证明,为截交线的形状判别与绘制提供了理论依据。