Upstream. Directly attached Heyuan, the upper section of the river, which is characterized by a large gap between fast-flowing, incised strong, narrow valley, the flow is small, often appear in acute bed beach and waterfalls. Tuoketuo County in Inner Mongolia over the Yellow River estuary town of the Yellow River upstream. Total length of 3472 km upstream drainage area of 386,000 square kilometers, accounting for the Yellow River's total drainage area of 51.3%. The total drop of 3496 m upstream, the average ratio fell to 10 ‰; River tributaries to import large (basin area of 1000 square km and above) 43, runoff accounted for 54% of the whole river; to sediment in upper reaches only the amount of the whole river sand years, 8% less water and more sand, is the Yellow River water source. Upstream river by Animaqing Hill, Xiqing Mountains, Qinghai Nanshan control of S-shaped curve was. Characteristics of the Yellow River based on the different channels can be divided into Heyuan section, gorge and alluvial plains of three parts. From Inner Mongolia and Ningxia Qingtongxia part Tuoketuo County River alluvial plain section of the town. Yellow River after the Qingtongxia along the northwest boundary of the Ordos Plateau to the northeast direction of flow, and then straight east mouth of the town. The area along the river most of the desert and desert steppe is basically no tributaries into the main stream bed flat, slow water flow, the two sides have a large alluvial plain, known as the Yinchuan Plain and Loop Plain. River flood plains and in different degrees, ice flood disasters. Ningxia Plain in the west under the Loop Riverside, east Inner Mongolia, River town, 900 km wide and 30 to 50 km, is famous for irrigated areas, irrigation has a long history, has always been a "detrimental Yellow River, only the rich _set_ of" The argument. Upstream: metaphor advanced. Example: going all out to strive for. The third meaning: higher Example: Lest upstream know
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English Expression
: upstream, head water, upper course
n.: upper reaches (of a river), advanced position, superordinate, the upper course of a river, upper stream
French Expression
n. amont, le courant supérieur d'une rivière;
avant