Extensity is one of the basic attributes of architecture.
空间性是建筑的基本属性之一。
However, extensity can not solve the whole problem of research on regional spatial structure.
然而，仅有空间性并不解决区域空间结构研究的全部问题。
First, it has gathering, management, analysis and export many kinds of geographical information, it has EXTENSITY and DYNAMICS.
第一，具有采集、管理、分析和输出多种地理信息的能力，具有空间性和动态性。
Most of studies overlooked sleeve type ejection gun and the effect of pressure area changes, simultaneously the models of ejection gun were lack of extensity.
以往研究中对多级弹射筒和压力有效作用面的影响重视不足，并且所建模型通用性差。
Objective to evaluate safety, extensity and clinical efficacy and patient tolerance of double-balloon push enteroscopy in diagnosis of patients with small bowel diseases.
目的通过对不明原因小肠疾病患者行双气囊电子小肠镜检查，评价其安全性、检查范围、临床价值及耐受性。
Objective to evaluate safety, extensity and clinical efficacy and patient tolerance of double-balloon push enteroscopy in diagnosis of patients with small bowel diseases.
目的通过对不明原因小肠疾病患者行双气囊电子小肠镜检查，评价其安全性、检查范围、临床价值及耐受性。
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