sand dust 中文意思是什麼

sand dust 解釋
砂粒級金剛石
  • sand : n 1 沙。2 〈 pl 〉 沙灘，沙洲，沙地，沙漠。3 〈 pl 〉 沙粒；（計時用的沙漏中的）細沙。4 光陰，時...
  • dust : n 1 塵，灰塵，塵土，塵埃。2 〈英國〉垃圾，廢品；灰燼。3 〈口語〉金粉；粉末，粉劑；花粉。4 〈詩〉...
  1. The severe sand dust not only has great effects on the quality of atmosphere environment in cities and on people ' s health, but also can be transported by northwest current to the sea, and exert baneful effects on marine ecosystem

    強沙塵天氣不僅對城市大氣環境質量和人體健康產生影響，而且會經西北氣流向海洋輸送和沉降，對海洋中營養鹽的供給和海洋生態系統造成影響。
  2. Effect of sand dust storm on incidence rate of respiratory diseases

    沙塵暴對呼吸系統疾病的影響
  3. Sand - dust storm forecasting model based on svm

    的沙塵暴預測模型
  4. The result shows that : the sand - dust storm occured in favorable climate background that is drought and rainless, the tilted trough and mongolia cyclone are the important weather systems that caused the severe sand - dust storm, tilted trough and strong frontal zone caused the mongolia cyclone developed and the clod front strengthened at surface, high jet and ferrel circulation are the main reason that momentum spreaded downward from higher level and frontal zone strengthened on lower level

    結果表明：沙塵暴是在乾旱少雨的有利的氣候背景下產生的。斜壓槽和蒙古氣旋是觸發這次強沙塵暴天氣過程的重要的天氣系統，高空斜壓槽和強鋒區促使了地面蒙古氣旋的發展和冷鋒的加強，誘發沙塵暴天氣。高空急流及其下方的ferrel環流起到了高層動量下傳和加強低層鋒區的重要作用。
  5. Many academicians regard that the cause of formation of sand - dust storm mainly is the vegetation in hungriness is destroyed

    摘要關于沙塵暴的成因，學界大多認為其是近期以來人為破壞荒漠植被的結果。
  6. Abstract : according to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, tsp and its particle size distribution, micrometeorology, and the solar spectroscopic radiation, even the neutron activation treatment of sand dust samples in helan mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of helan mountain are counted and analysed

    文摘:利用賀蘭山地區沙塵暴歷史資料和綜合觀測資料，對大氣背景、浮塵、揚沙和沙塵暴發生期間的大氣氣溶膠數濃度譜、質量譜、大氣總懸浮顆粒（ tsp ）及粒徑分佈、微氣象、分光日射觀測以及沙塵樣品進行中子活化處理，分析了該地區浮塵、揚沙和沙塵暴形成規律，氣候變化特徵和賀蘭山的影響。
  7. According to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, tsp and its particle size distribution, micrometeorology, and the solar spectroscopic radiation, even the neutron activation treatment of sand dust samples in helan mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of helan mountain are counted and analysed

    利用賀蘭山地區沙塵暴歷史資料和綜合觀測資料，對大氣背景、浮塵、揚沙和沙塵暴發生期間的大氣氣溶膠數濃度譜、質量譜、大氣總懸浮顆粒（ tsp ）及粒徑分佈、微氣象、分光日射觀測以及沙塵樣品進行中子活化處理，分析了該地區浮塵、揚沙和沙塵暴形成規律，氣候變化特徵和賀蘭山的影響。
  8. Sand - dust storm is a kind of calamitous weather phenomenon, which means that strong breeze draws much sand and dust on the surface into the sky, making air very foul and with visibility lower than 1km

    沙塵暴系指強風把地表大量沙塵捲入到空中，使空氣特別渾濁，水平能見度低於1km的災害性天氣現象，是重要環境問題之一。
  9. The persistence of dry warmer sector in winter in northwest of china is the index of its occurrence. moreover, the sand over the ground surface also provided a favorable substance condition. sand - dust weather in qingdao occurred frequently in spring

    蒙古氣旋和西北強冷空氣是「 3 . 20 」強沙塵暴最主要的天氣形勢和動力機制；冬季北方乾旱少雨、沙塵裸露面大提供了物質基礎。
  10. Dual forecasting model of sand - dust storm based on the lattice position field data

    基於格點場數據的沙塵暴雙預報模型
  11. Successive observation and analysis of tsp concentration in a sand - dust storm case

    質量濃度的連續觀測和分析
  12. Otherwise, the stratified atmosphere is stable when the severe sand - dust storm happened

    另外，本次強沙塵暴天氣出現在基本穩定的大氣層結之中。
  13. By using the psu / ncar mm5 model, we made a numerical simulation about the severe sand - dust storm that occured in the north china on 20march in 2002

    20 」強沙塵暴天氣過程進行了數值模擬，並利用模式輸出的各物理量對沙塵暴進行診斷分析，得出了華北地區沙塵暴的形成、發展機制。
  14. According to the source areas, the sand - dust storms are classified into two types : the inner source and the outer source sand - dust storms. more than half of the sand - dust storms affected china came from mongolia

    根據沙塵暴的起源，可將發生在我國的沙塵暴天氣過程分為境外源區和境內源區，影響中國的沙塵暴天氣有七成起源於蒙古國。
  15. The chinese northern sand - dust storm was forecasted to increase gradually in waves, entering into a new round of relatively active period

    預計未來中國北方沙塵暴將在波動中逐漸增加，進入新一輪的相對活躍期。
  16. Based on the analysis of study progress on sand dust storm, the temporal and spatial regulation, the reasons, the later study means in sand dust storm, its prevention and control and the characteristic features of sand dust storm caused and developed are summarized

    在分析我國班方地區沙塵暴研究現狀的基礎上，系統總結了沙塵暴的時空分佈規律、形成原因、最新研究方法和手段以及預防治理沙塵暴的對策，指出我國北方沙塵暴發生發展的某些規律。
  17. Primary study on the blown sand - dust of farmland and its control in beijing region

    北京郊區農地起沙起塵與防治的初步研究
  18. Sand dust test chamber

    沙塵試驗箱
  19. When the " turbid wind " with almost a saturated sand concentration changes to a refreshing breeze after getting rid of the sand dust around the protective net, it exhibits an even more powerful wind abrasion when blowing across the cliff region

    當含沙量幾乎飽和的"渾濁之風"在防護網前後卸下沙塵變成清風，在吹過崖區時便顯出更強的風蝕作用。
  20. Exponential relationship of the sand - dust storm occurrence frequency and the duration time

    沙塵暴次數和持續時間呈指數關系
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