density altitude 中文意思是什麼
density altitude
解釋
密度高度-
The relative air density decreases with the increasing of altitude. therefore, the discharge performance of air - gap and insulator string at high altitude regions is different from that of the referring standard conditions
高海拔地區相對空氣密度較低，絕緣子和空氣間隙的放電特性與低海拔地區有很大的差異。 -
For " upper - air ", weather maps are usually drawn for isobaric ( i. e. equal pressure ) surfaces following the practice of conventional upper - air observations and analysis. air density and atmospheric pressure generally decrease as altitude increases
至於高空方面，由於常規的高空觀測與大氣分析都是在標準等氣壓面上進行，所以高空天氣圖亦習慣在等壓面上繪制。 -
The paper works out the ice crystal spectrum distributing in the different macroscopic and micro - backgroud of the cloud ( ie, the thickness, the temperature and the supersaturation with respect to ice of the nucleation layer ). this paper also works out the amount of catalyst which is allowed in the cloud nucleation layer according to the different quantity of the supercooled water, the density of the supersaturation of the vapor with respect to ice. simultaneously, the paper discusses the i nfluence of remaining time when seeding artificial ice nucleus in the different ascending - velocity and altitude, and elicits the proper seeding altitude of the catalyst
以此解為依據，得出了不同均流時，人工引入冰核在核化層存留時間，再以此時間作為人工冰核凝華增長時間，求出不同的雲宏微觀背景（如核化層厚度、溫度、冰面過飽和度等）下的冰晶譜分佈，經和實際資料比對符合相當好。進而求出核化層中不同過冷水量、冰面過飽和水汽密度下雲核化層可允許的催化用量。同時討論了不同升速，不同高度引入人工冰核時對其存留時間的影響。 -
The change of atmospheric pressure reflect the change of the altitude and the change of the temperature 、 humidity and relative air density in the different altitude region, so the atmospheric pressure is able to be use for the characteristic parameter of token the effect of the altitude on external
氣壓可作為表徵海拔高度對外絕緣放電電壓影響的特徵參數；高海拔地區空氣間隙和絕緣子串的放電電壓u均可表示為相應海拔下氣壓的冪函數，即u = u0 （ p / p0 ） n ，其中氣壓對放電電壓影響的特徵指數n與電壓類型和放電間隙的結構類型以及絕緣子類型等有關。
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