Study on main fork changing place characteristics of branching river course in , idle and lower course of changjign river 长江中下游分汊河道主支汊易位特性研究
Summer precipitation in the middle - lower reaches of yangtze river and its relationship with global heat flux fields 长江中下游夏季降水及其与全球热通量的关系
Here , running from north to south are the northeast plain , the north china plain and the middle - lower yangtze plain 这一级上分布着东北平原、华北平原、长江中下游平原。
Now we have very possibly faced again a new stage of lesser meiyu starting in 2000 从2000年开始，长江中下游梅雨又进入新的偏少期，中国东部夏季水资源分布正面临新的变化。
The dynamic monitoring and prediction of land use pattern in the area of middle and lower reaches of the jialingjiang river 嘉陵江中下游地区土地利用格局变化的动态监测与预测
The han live in the whole country , mainly in ? ? ? of yellow river ， chang river and northeast plat 14汉族分布在全国各地，主要聚居在黄河、长江、珠江三大流域的中下游和东北平原。
Adopting a method of sampling , choose nine points in upper , middle and lower reaches respectively to get water samples 采用抽样调查方法，在流域的上中下游分别选取九个点取水样。
East asia summer monsoon is stronger when the cross equator flow of 90 e is stronger than normal 夏季低空90 e附近越赤道气流与中国长江中下游及东北地区夏季降水有着密切的关系。
Risk analysis on limited water level of reservoirs in flood season and flood control system in midstream and downstream of yellow river 黄河中下游水库汛限水位与防洪体系风险分析
Water - land resources utilization and environmental evolution in middle to lower reaches of heihe river basin during the past 2000 years 000年来黑河中下游水土资源利用与下游环境演变
