soil covering 中文意思是什麼

soil covering 解釋
地被物
  • soil : n 1 泥土,土壤;土質。2 土地,國土。3 滋生地,溫床。4 農業生活,務農。n 1 臟東西,污物,污穢,污...
  • covering : n 被覆,外被;外封;房頂;上覆物,掩護;【商業】了結,補進。 covering fire 掩護射擊。 covering fo...
  1. The paper views the principles and mechanics in the aspect of saving soil water with three coving - substances from viewpoint of history bac kground, and explains its advantages and disadvantages, therefore, the techniques of chemical covering will be one of the importance of saving - water in the future farming

    摘要從農田化學介質覆蓋節水產生的背景及其過程,主要闡述了其研究現狀、原理、技術效果以及存在的問題,提出了農田化學介質物覆蓋節水將是未來農藝節水的重要技術之一。
  2. The earth surface of the region across it is mostly thicker humus soil or leaf falling covering layer, and has good heat reserving property, it is mostly weathering shingle, soil - aggregate mixture, and clay - gravel 0. 5m - 4. 0m under it, and weathering rock

    所經地區的地表多為較厚的腐殖土或落葉覆蓋層,其保溫性良好,下層0 . 5 ? 4 . 0米多為風化沙礫、碎石土和礫石土, , 4 . 0米以下為風化巖石。
  3. At the same time, this paper also describes the fluctuation of soil nutrients and the contrast between soil of leguminosae and non - vegetation covering. the results are as follows : 1 ) despite the mesophyte leaf form of the ten pioneer species there were significant differences in leaf anatomical characters among them and some differences among different plants of an individual

    結果表明研究區喀斯特先鋒植物葉片在不同種類之間具有明顯差異,這些差異除受遺傳因子控制外,環境因子(主要為光照和水分)也有重要作用;生活型不同對先鋒植物葉片特徵有一定影響,但未表現出規律性。
  4. Effect of reducing the dosage of methyl bromide and covering virtually impermeable film on soil fumigation and tomato growth in greenhouse

    少用甲基溴的土壤消毒效果及對溫室番茄生長的影響
  5. The experiment was conducted to determine the influence of different regulation and control methods of soil moisture, such as plastic film mulching, covering grass under trees, growing grass under trees, irrigating regularly, loosening the soil under trees, on quality of fruit in a non - public nuisance crisp pear garden in the area of old course of yellow river

    摘要以45年生酥梨樹為試材,分析測定塑料薄膜覆蓋、樹盤覆草、自然生草、定期灌水、清耕等不同土壤水分管理措施對土壤水分和酥梨品質的影響,結果表明:塑料薄膜覆蓋和樹盤覆草處理中,土壤含水率比較適宜,且變幅較小,有利於果實生長發育和提早著色,提早成熟,產量和品質較好;其它處理中土壤含水率要麼過高,要麼過低,且變幅較大,酥梨的果實品質也比較差。
  6. Returning and covering whole corn stalk into soil

    玉米秸稈整株深埋還田技術研究
  7. Furthermore, on the basis of consultancies, inquiries and evaluations from multiple sources, the model for predicting soil and water loss in dandong - zhuanghe highway construction is developed. moreover, considering the characteristics of the highway, the covering area of the project is divided into three parts such as main body area, soil - fetching area and soil - spoiling area. for these three preventive areas, the perfect precaution measures for preventing and curing the soil and water loss during the road construction in which a number of vegetal cover measures are taken

    論文中詳細調查並介紹了項目情況及沿線自然、社會經濟狀況;收集研究了公路建設項目水土流失預測的基本內容和方法,在多方查詢、請教專家及分析研究的基礎上,提出了丹莊高速公路水土流失預測模型,針對項目不同區域進行了水土流失預測和分析,為水土保持措施的設計提供了定量依據;論文根據高速公路項目的特點,將丹東至莊河高速公路項目區分成了主體工程、取土場、棄土場三個水土流失防治區,並在初步設計文件的基礎上,針對三個水土流失防治區進行了較為完善的水土保持防治措施設計;論文在丹東至莊河高速公路水土保持方案設計中大量採用了植被防護措施,為了更有力地指導植被措施的施工,論文中還就植被保持水土的有效性進行了研究探討。
  8. By analyzing the rainfall use efficiency, the soil moisture variation during the whole growth period, the economic characters and the output of dry land corn under different film mulch modes, it has been proved that the mode of whole covering on double ridges and planting in catchment furrows is an effective way to store and utilize fully the natural rainfall, to improve soil moisture conservation, to raise rainfall use efficiency, to advance maturity time, and to increase yield and economic benefits of dry - land corn remarkably

    摘要通過對旱作玉米幾種不同覆膜栽培模式降水利用率、玉米整個生育期的土壤水分監測、生育時期觀測、經濟性狀及產量分析證明,旱作玉米雙壟面全膜覆蓋集雨溝播技術是一項充分接納和利用天然降水、最大限度保蓄土壤水分、顯著提高降水利用率、提早成熟、增產效果明顯、經濟效益顯著的旱作玉米栽培模式。
  9. The surface is the relatively thin covering of soil and unconsolidated rock waste.

    浮土是由土壤和未固結巖屑組成的比較薄的覆蓋層。
  10. No covering or covering the seeds lightly with soil was better for seed germination

    種子發芽以不覆土或淺覆土為好。
  11. The covering up of soil and cement surfaces eliminated dust, thereby rendering the whole country spotless. i admire the comprehensiveness of singapore ' s municipal facilities even more. in a densely - populated country with high temperatures all year round and heavy rainfall, it is indeed a miracle that the problem of mosquitoes and houseflies has been taken care of

    我欣賞新加坡的「寸土必綠」的綠化方針,因為「黃土不見天」和「水泥不露面」 ,因而才能消除塵埃,實現全國潔凈我更贊賞新加坡市政設施的配套完備,因而才能在人口高度密集全年皆夏氣溫較高雨水充沛的國度消滅了蚊蠅。
  12. The results showed that the soil moisture was moderate for the tree growth by plastic film mulching and covering grass under trees, which had led to higher yield and quality of the fruit than that of other treatments

    因此,在黃河故道區無公害酥梨生產中,建議採取塑料薄膜覆蓋和樹盤覆草方法,此方法操作簡單,便於實施。
  13. In the light of its special property being not easy to gain strength, through mechanics researches on different methods to stabilize this kind of low _ liquid _ limit silty soil as subbase material, evaluated both technically and economically, we have got a cement lime stabilization plan to meet the index requirements for non _ side _ limit strength of compression of subbase of class2 road stipulated in the specification ; by means of improving the workmanship, thickening the loose layer of soil, adding soil on covering weave fabric before compaction, such problems can be solved as very poor compaction, loose surface during compaction, roughness and unevenness, coats of layer and shear damages

    本文針對黃河沖積而成的低液限粉土其粘粒含量極低、土的不均勻系數很小、膠體活性差的工程特性,通過採用不同方法穩定該類土作底基層材料的力學性能研究,從技術、經濟角度綜合評價,得到滿足規范抗壓強度指標要求的水泥石灰穩定方案。通過對原材料、試驗配合比設計、施工、等方面進行優化,從而顯著減輕了基層的早期及長期縮裂程度,從而提高了路面的耐久性。
  14. Study on controlling weeds in soybean land by covering soil surface with sprays of 50 ec of prometryne, 2, 4 - d and acetochlor between sowing and emergence

    乙183 ;二183 ;撲乳油播后苗前土壤封閉防除大豆田雜草田間藥效試驗
  15. ( 1 ) in newly - constructed stage and early stage of reclamation, the most important factor of runoff is 30min rainfall intensity. in later stage of reclamation, the most important one is 45min rainfall intensity. and the runoff capacity is the most important influence factor to soil erosion always ; ( 2 ) on the certain degree, loosening surface has an active function to infiltration condition but not to conserve soil ; ( 3 ) the most runoff is formed on platform of stackpile and the soil erosion often happens in the slope ; ( 4 ) stone - soiled dumps have an advantage over soil at respect of erosion resistance so that soil is not adapt in covering slope ; ( 5 ) grass has a better role in conservation of water and soil than arbor in early stage of reclamation ; ( 6 ) arbor - arboret - hemp mix is the best model for conservation

    結果顯示:在未復墾時期和復墾初期, 30min降雨強度對徑流影響最大,復墾後期徑流與45min雨強相關性最強,而徑流量對土壤侵蝕量的影響始終最大;通過疏鬆地表巖土只在一定程度上改善地表的入滲條件,並不能起到保土的作用;平臺為徑流的主要形成區,而土壤侵蝕主要集中在斜坡;土石混排坡的土壤抗蝕性比覆土坡的要大得多,在排土場形成過程中不宜用厚層黃土覆坡;在復墾初期,純草模式水土保持效果明顯好於純喬模式。
  16. The soil color changed from dark brown to grey brown, at the bottom layer 4 pillar cavity structures were uncovered. the pillar - cavity structure close to the north wall had signs of cement covering and the areas nearby there were signs of scratch marks from excavators

    土色由深褐轉灰褐色,底層出現四個柱洞結構,近北墻的一個柱洞周圍甚至有以水泥鋪底的現象,附近並且有四爪怪手抓痕。
  17. Effects of different covering methods on soil water distribution

    不同覆蓋方式對土壤水分分佈的影響
  18. In this paper, depending on the enormous 356 pile testing date detailed with soil and pile parameters and p ~ s curves, covering xi ' an and adjacent areas, we analyzed the load transmission mechanism of pile in loess foundation, and proposed a kind of hyperbolic load transmission function between pile and it ' s neighboring soil. meanwhile, we created a mathematical model to predict p ~ s curve and bearing capacity of single pile. by analyzing the compacting effect caused by pile - sinking of pressed pile in loess and it ' s influence on bearing capacity and settlement, two parameters, kc and ke are introduced to modify the soil cohesive c and deformation modulus es

    本文利用現己收集到的西安及其周邊地區356根打入樁、靜壓樁、灌注樁的現場試樁資料(其中打入樁67根,靜壓樁121根,鉆孔灌注樁168根,並有詳細的地層勘探資料,樁深資料,荷載沉降?曲線)對西安黃土地基中的打入樁、靜壓樁、灌注樁的荷載傳遞機理進行了分析研究,認為用雙曲線型的荷載傳遞函數模擬樁土之間的荷載傳遞函數是合適的,並用荷載傳遞分析的方法建立了計算p s曲線的數學模型及極限承載力的確定方法。
  19. But once the seeds are planted, she does suggest covering the soil with a little mulch to protect it during rains and dry periods

    一但種植的菜籽,她建議用少許的覆蓋物蓋上土壤,在雨季和乾燥期保護菜籽。
  20. Optimization of model of covering soil layer inside levee for dongting lake region by seepage fem

    洞庭湖區堤內壓蓋模型滲流有限元優化
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