space time entity 时空实体
The theory of SM believes that the representation of SM concerns at least five dimensions, such as (1) space, (2) time, (3) entity, (4) causality and (5) intention.
情境模型理论认为人们在理解信息的过程中至少需要建构5个维度，即：（1）空间，（2）时间，（3）实体，（4）因果，（5）目的等。
A mathematical structure is an abstract, immutable entity existing outside of space and time.
数学结构是一种抽象、不可变的实体，超脱于时间与空间之外。
The modern logistics is a scientific management processing information exchange through high-tech means via computers, establishing on the basis of flowing materials entity in the time and space.
现代物流是建立在时空流动的物质实体基础上，引入高科技手段（如通过计算机）进行信息联网的科学管理。
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