topographic distribution

Objective To determine the presence, distribution, and metastasis incidence of parametrial lymph nodes ( PLN) of patients with cervical cancer and to investigate the role of lymphatic mapping and topographic section in PLN identification.

目的探讨早期子宫颈癌患者宫旁淋巴结（PLN）存在与否及其分布、转移规律，进而评估以生物染料法（亚甲蓝染色）结合标本的局部解剖识别PLN的临床价值。

Base on the Shun-zhi topographic map published in 1926, the density distribution of surface water system in Tangshan and Xingtai areas have been studied with GiS method.

以1926年出版的顺直地形图（1∶5万）为基础图件，使用地理信息系统（GIS）的方法，统计研究邢台和唐山两地震区地表水系的密度分布。

Influences of Geographic and Topographic Factors on Spatial Distribution of Precipitation in Urumchi

乌鲁木齐市地理地形因素对降水空间分布的影响