表土 的英文怎麼說

中文拼音 [biǎotǔ]
表土 英文
[農業] topsoil; surface soil; capping; capping mass; atteration; uncallow; kelly; epipedon表土層 pedosphere; a-horizon; 表土耕作 surface tillage; 表土施肥 surface manuring; 表土中耕 surface cultivation
  • 表 : Ⅰ名詞1 （外面;外表） outside; surface; external 2 （中表親戚） the relationship between the child...
  1. In loessal regions and alluvial valley fills of the western united states, both surface soil and subsoil are commonly friable.

    在美國西部黃土區和沖積河谷里，表土和底土一般是容易破碎的。
  2. Loading and structure of shaft lining by shaft drilling in deep alluvium

    深厚表土中鉆井法鑿井的井壁外載和結構
  3. But then, with the intention of bringing trees back to the territory, serious efforts were made by the government to green the countryside. however, the hills - and even some valleys - were dominated by badlands and erosion scars

    不過，當年的山嶺，以至部分山谷，皆遍布劣地和侵蝕遺痕加上這崎嶇不平之地主要由花崗巖組成，表土養分易於流失，凡此種種，都對植樹工作構成嚴峻的考驗。
  4. Ollie ", a kookaburra, " syd ", a platypus ; and " millie ", an echidna, are three native animals chosen as mascots for the sydney 2000 games

    澳利悉德米利， 2000年悉尼奧運會吉祥物。它們是三個澳洲本土動物，分別代表土地空氣和水。
  5. Loess is easy borne by the wind and may be carried long distances before it falls to earth and becomes topsoil.

    黃土易被風颳起並帶至遠處方才落下成為表土層。
  6. The surface soil and the unconsolidated mantle rock beneath it form only a thin venner.

    地表土壤和它下面的未固結的風化層只是形成一個很薄的蓋層。
  7. It would appear that the inputs are insufficient to offset the mobilization and leaching of calcium from the topsoil.

    鈣的轉入量看來不足以補償從表土中活化和淋失的鈣。
  8. Freezing design of thick overburden in main shaft of xuehu mine

    薛湖礦井主井深厚表土凍結設計
  9. Finally, nasa and the florida space research institute are sponsoring moonrox, the moon regolith oxygen competition. a 250, 000 prize goes to the team that can extract 5 kg of breathable oxygen from jsc - 1 lunar stimulant, a new lunar soil simulant developed under the auspices of nasa johnson space centre, in 8 hours

    最後，美國太空總署和佛羅里達太空研究中心，正贊助一項名為月球表土氧氣的賽事，提供25萬美元獎金給率先在八小時內能從美國太空總署莊臣太空中心的模擬月球土壤jsc - 1提取5公斤可呼吸氧氣的人。
  10. Practices of mine shaft sinking construction in deep mine freezing shaft

    深厚表土層井筒凍結段施工技術
  11. In one mined area the soil was removed, then stockpiled for two years before it was respread.

    在一個礦區，表土搬走後堆放了二年才重新鋪開。
  12. ( 4 ) we defined ssee factor ( surficial soil element enrichment factor ) and wpem factor ( weathering profile element mobility factor ), and applied them to evaluate the degree of effects of black shales weathering on soil, water bodies and their sediments composition

    （ 4 ）提出了表土層元素富集因子和風化剖面元素遷出因子，用於估算巖石風化對水體及其沉積物、土壤的化學組成影響的程度。
  13. The fragile land quickly lost its topsoil and became nothing but sand and dust.

    那單薄的土地很快就失去了表土，成為沙粒和塵埃。
  14. In many countries the loss of productive topsoil has contributed to growing food deficits.

    在許多國家裡，生產性表土的流失已導致日益嚴重的糧食短缺。
  15. If the topsoil is taken away by erosion, plants can no longer grow in the soil left behind.

    如果因水土流失而沖掉了表土，植物不能再在留下的土壤中生長。
  16. Major top soil improvement and hydroseed projects are still continuing along both the eastern and western side of airport road

    在機場路東西兩旁，大規模的表土改善工程及水力播種計劃仍持續進行。
  17. Discussion on coercibility of shaft wall structure in deep thick surface seam shaft

    深厚表土層井筒可縮井壁結構的探討
  18. The key techniques of freezing method construction for deep - lying thick surface soil are expounded, the problems to be settled urgently at present are put forward, moreover the present situation of freezing technique is summarized

    摘要闡述了深厚表土凍結法施工關鍵技術，提出了目前深厚表土凍結技術亟待解決的問題，並對目前凍結技術現狀進行了總結。
  19. A ( 9, sr ) is a function of surface roughness and radar incident angle, and b is only influenced by incident angle

    通過與實測地表土壤水分含量對比，反演結果均方根誤差（ rmse ）為0 . 44 。
  20. For parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients. inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model. the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics

    利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達後向散射模型; 2 ） .研究發現在農作物等矮小植被覆蓋地表，植被層直接後向散射與植被類型相關，且在植被生長期，雷達後向散射系數對植被含水量的敏感性要高於對植被高度變化的敏感性; 3 ） .解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題; 4 ） .利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響; 5 ） .在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse = 0
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