積雪測量 的英文怎麼說

中文拼音 [jīxuěcèliáng]
積雪測量 英文
snow survey
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  • 雪 : Ⅰ名詞1 （空氣中降落的白色結晶） snow 2 （姓氏） a surname Ⅱ動詞（洗掉恥辱、仇恨、冤枉等） wipe ou...
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 積雪 : [水文] snow cover; accumulated snow; accumulation of snow; snows; snow mantle
  • 測量 : measure; survey; gauge; meter; measurement; measuring; surveying; mensuration; metering; gauging;...
  1. Measurement precision contribute to improving the security class and economic of boiler running and automatic level of whole plant. the smart measurement instrument of the boiler ’ s air flow designed in the thesis and the instrument can make the degree of accuracy get to. firstly, the thesis build the “ velocity - area ” method which is on basis of “ log - tchebycheff ” on the analyzing of basic measure method of boiler ’ s air flow. secondly, model86 averaging pitot tube was selected the right model of flow transducer which can pickoff the differential pressure and static pressure. modelc264 which made in setra system corp. u. s. a was selected as ultra low differential pressure transmitter. a good flow of boiler ’ s air was calculated by offsetting pressure and temperature. finally, numeroscope was designed with z80cpu and other chips

    精確的監測有助於提高鍋爐燃燒的安全型、經濟性，也有助於提高電廠的整體自動化水平。本文設計的智能化鍋爐風量測量裝置能夠實現對鍋爐送風的精確測量，精度可達。本文首先研究鍋爐送風矩形大管道測量理論，提出在流來流量測量測點布置基於「對數-切比雪夫」法的速度-面積法。
  2. Because of modis predominant space and spectral differentiate rate, it ’ s has been broadly applied to various field, in the aspect of snow monitoring, modis has been successfully using a normalized difference snow index ( ndsi ) to provide global automated binary maps of snow cover. the ndsi is a spectral ratio that takes advantage of the spectral difference of snow in short - wave infrared and visible spectral bands, although it has higher precision, it can only discern one pixel to snow or other features, can not satisfy accurate drainage basin snow cover mapping and snow parameter extracting

    Modis數據因其優越的空間解析度、波譜解析度，已被廣泛的運用於各個領域，在積雪監測方面，已成功地運用歸一化差分雪蓋指數（ ndsi ）製作每天的全球雪蓋分布圖， ndsi是基於雪對可見光與近紅外波段的反射特性和反射差相對大小的一種測量方法，然而它只能將一個像元辨別為積雪或非積雪，滿足不了高精度應用要求。
  3. The resuits shows that this method is available and last ten days snow depth and area is correlated to the precipitation observed at weather station

    通過對山區積雪與鄰近氣象站降水資料的分析發現測站降水量與后一旬的雪深、雪面積相關性較好。
  4. The researchers also predict that by the middle of the century, melting snow will cause streams to reach their annual peak flow up to a month earlier

    研究者們還預測，到本世紀中葉，融化的積雪將導致河流量提前一個月達到其年高峰值。
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