求翻译：它通常用建筑面积、人口数量、就业规模、经济产值和物化投入等单项或复合指标来表达，具有多层次、多目的、多要素以及复杂性和动态性的特征。是什么意思？

It is usually with the construction area, to express individual or composite indicators of the population, the scale of employment, economic output and materialized investment, with multi-level, multi-purpose, multi-elements as well as complex and dynamic characteristics.

It is usually a gross floor area, number of population, employment, economic output and materialized into single or composite indicators such as expressed in a multi-level, multi-purpose, multi-element, as well as complexity and dynamic nature of the character.

It usually with single items or the compound target and so on floor space, population quantity, employment scale, economical output value and transformation investment expresses, has multi-level, the multi-goals, the multi-essential factors as well as the complexity and the dynamic characteristic.

It usually with a size of area, population, employment, economic production and physical and chemical inputs, such as a single or composite index expression have a multi-level, multi-purpose, multi-elements as well as the complexity and dynamic characteristics.

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