decision altitude 中文意思是什麼
decision altitude
解釋
決斷高度-
Aom tells very instrument pilot under what visibility ( in terms of runway visual range ( rvr ) ) and or cloud ceiling can the aircraft take off, and under what visibility ( again in terms of rvr ) and visual reference can the aircraft continue the approach to land from the decision altitude ( for precision approaches, e. g. instrument landing system ( ils ) ) or from the minimum descent altitude ( for non - precision approaches ). there are a number of factors affecting the values of aom
機場最低飛行條件讓每名按儀表駕駛的飛行員知道，航空器在什麼能見度以跑道能見距離來說及或雲幕高度下才可起飛；以及航空器在什麼能見度以跑道能見距離來說及目視基準下，才可從決斷高度用於如使用儀表著陸系統的精確進場或最低下降高度用於非精確進場繼續進場著陸。 -
Meanwhile, we built models of data collection, soeciai point ' s altitude handling, grid point ' s altitude handling, designed a method which can rapidly collect and process terrain data by descripting the contour line with mouse, and designed corresponding software by c + + builder5. 0. therefore, military digital maps can be facilitly and quickly made and computer - aided terrain analysis can be realized, thus the system can effectively help the commanders or staffs make their decision
同時建立了數據採集、特殊點高程處理、網路交點高程處理等模型，設計了一種可通過鼠標器描繪等高線而實現地形數據的快速採集、處理和賦值的方法，運用c + + builder5 . 0設計了相應的軟體，能夠方便、快捷地生成數字化軍用地圖並進行計算機輔助分析地形，從而能夠有效地幫助指揮員或者參謀人員進行決策。 -
( c ) land natural productivity increase from 7843 kg / ( hm2 - a ) to 17335 kg / ( hm2 - a ) relate to altitude closely, and the mean rate of enhancing yield is 23. 53 percent in this region with annual enhancing - rate of 0. 64 percent in last 15 years. ( d ) there are many facters that have been influe ncing soil effective coefficient that ' s soil organic matter, total nitrogen, effective phosphine and soil texture in turn. in a word, attenuation cause of land productivity is the result of water and soil. ( e ) the forestland potential productivity change from 3986 kg / hm2 to 15034 kg / hm2, but it has a high distinction between southern aera and north area in yaan city. ( f ) the grassland potential productivity increase from 4085 kg / ( hm2 - a ) to 16973 kg / ( hm2 - a ), but it has a high classification of potential productivity, ( g ) ditribution map was formed of potential land productivity. ( h ) it could be act as decision support for agriculture development, national land planning and ecotop constructive, etc
5 、土地自然生產潛力水平的主要土壤限制因素為有機質、全氮，其次為速效磷和土壤質地；區域潛在生產力差異的制約因素，主要為土壤，次為水分，水、土兩項衰減合計為45 . 99 ，石棉、漢源兩縣水、土衰減達到60左右。 6 、林地潛力在3986 15034kg / hm ~ 2之間，高等級林地比重小，以大相嶺為界，北部的各縣林地生產力水平高，南部的兩縣林地生產力水平較低。 7 、天然草地生產潛力水平高，潛力在16973 4085kg / （ hm ~ 2 ? a ）之間，以高產的一、二、三級草地為主，且近10年來該比例變化不大。
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