1·It is argued that activity especially math activity includes two types: presentational operation and operation of thought, the latter is the main part of math activity.
指出：活动，尤其是数学活动包括两种类型：表象操作和思维运算，并强调：思维运算活动是数学活动的主要部分。
2·He had been pursuing artistic truth which was not presentational truth but a kind of emotional and subjective truth.
他追求艺术真实，但不是表象的真实，而是一种情感化的主观真实。
3·Its presentational feature is development of structure and enrichment of granule xenomorphic sulfides.
其表象特征为构造发育，细粒他形硫化物富集。
4·CSS is a presentational language.
CSS是一种表象的语言。
5·Presentational training is one mentality training method.
表象训练是一种运动心理训练的方法。