plateau length 中文意思是什麼
plateau length
解釋
坪長-
Based on the investigation and research, the paper gives a testing method, which measures the taking off and landing distance of airplanes with the laser locating system for airplanes trace. and by way of the field measuring on plateau airports, we have got the integrated modifying coefficients of three kinds of airplanestaking off and landing running distance such as h6. all of these provide scientific basis for the runway length design of the plateau airport
在調研論證的基礎上，提出了利用《飛機起落航跡激光定位系統》測定飛機起飛著陸滑跑距離的測試方法，並通過高原機場實地測試，得出了三種飛機在高原機場上起飛著陸滑跑距離的綜合修正系數值，為高原機場跑道長度設計提供了可靠的理論依據。 -
Applying the basic theories of spatial data mining and geomorphology, taking the loess plateau of north shaanxi province, china as the research area, this dissertation explored the theories and systematic structures of geomorphologic data mining and acknowledge discovery from dems, ascertained the systematic structures of topographic factors and synthetic topographic acknowledge, as well as systemically summarized mining algorithms from dems. the author pa id more attention also to analyze the principle and algorithm of flow length, curvature, relief, the earth ' s surface incision and gully density. in this research, the elementary constitutes and mining algorithms of regional character acknowledge in the loess plateau were probed
本研究在廣泛總結前人研究成果與研究經驗的基礎上，利用空間數據挖掘和地形地貌學的基本理論，以陜北黃土高原多地貌類型區為實驗樣區，以1 10000比例尺dem為樣本數據，探討了dem中地形地貌數據挖掘與知識發現的理論方法和體系結構；確定了宏觀和微觀地形因子、地形綜合特徵知識的體系結構；系統總結了dem基本地形因子的提取演算法，並重點對坡長、曲率、地形的起伏度、切割深度和溝壑密度因子提取的原理與演算法作了深入的分析；提出了黃土高原地區區域特徵知識的基本構成及其系統完整、科學可行的挖掘提取演算法；擴充了arcviewgis軟體平臺中dem空間分析的基本功能；實現了以delphi7 . 0為平臺的地形信息輔助挖掘系統的設計與開發；完成了對黃土高原多地貌類型區（樣區）地形信息空間分異特徵的分析。
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