bed soil 中文意思是什麼

bed soil 解釋
床土
  • bed : n 1 床，床鋪；床位，鋪；（動物的）窩；〈比喻〉安樂窩，墳墓；床墊；睡眠；就宿。2 婚姻，夫婦關系。3...
  • 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...
  1. Now some universities and institutes of china have made some samples of the lunar rovers and theirs wheels, but until now the wheel ’ s mechanical performance is seldom researched and tested. this paper will analyze the mechanical performance of the wheel and design a test - bed to test the performance of the lunar rover ’ s wheel. firstly, the mechanical characters of the soil are separated to press - sinkage character and shear character based on bekker ’ s theory, and common press - sinkage and shear models are introduced and the theory of lankine passive earth pressure is also introduced

    根據bekker半經驗法的基本思想，將土壤的力學特性分解為水平方向的剪切特性和豎直方向的承壓特性，闡述了地面力學中常見的土壤的承壓、剪切等力學模型，並引入了朗肯被動土壓力理論，為建立車輪在松軟土壤中前進和轉向的力學模型奠定了基礎，同時進行了實驗土壤的剪切實驗，測量了土壤的內聚力和內摩擦角等參數。
  2. One easy way to create a raised bed is to obtain enough straw bails to create a 24 by 24 foot square and then fill the middle with really good soil ; and plant your seeds in the desired sequence, squares within squares leaving spaces to enter or exit the garden

    你可以通過一種簡單的方法來製造苗圃床：收集足夠的麥稈支架來製作一個24英尺的正方形，在中間填充良好的土壤；按照你喜歡的順序種上種子，在方形中留下空間以供進出菜園。
  3. Most of the soil had been washed away or buried in drift after the removal of the trees ; only where the streamlet ran down from the kettle a thick bed of moss and some ferns and little creeping bushes were still green among the sand

    在樹木被搬走以後，大部分土壤不是被雨水沖走就是埋成了堆，只在那細泉從鍋中溢出后形成的細流邊上，有一塊厚密的苗床，上面長著些苔蘚羊植物和蔓延在地面上的小灌木叢，仍然在這沙地上搖曳著一片碧綠。
  4. Application of biosurfactant in the biodegradation of petroleum contaminated soil with bio - prepared bed

    影響石油污染土壤總石油烴
  5. The essential cause that induces subway vibration is the inter action between the train ’ s wheels and rail. through the sleeper, ballast bed, roadbed and soil layer, the vibration spread to far place

    地鐵振動產生的根本原因是由於輪軌的相互作用，再通過軌枕、道床、路基和土層依次向遠處傳播。
  6. The results show that ( 1 ) the system of contour dams, contours and fallow had positive impact on water and soil losses than grass stripes and contour ditch. at the same time it was showed that contour dams, contours, fallow significantly reduced soil erosion and water loss, grass stripe and contour ditch had recorded reduction in water and soil losses although to a much less extent than above 3 farming systems. most of sediment was bed load in all the systems except in contour dams and contour fanning

    研究的主要結論如下： 1 、運用坡面徑流小區法系統地研究了當地農業生產活動中不同農作措施下紅壤坡耕地水土流失特徵、土壤養分流失規律及形態特徵，結果表明： （ 1 ）同順坡農作措施相比：其它農作措施均具有明顯減輕水土流失的作用，等高土埂，等高農作、休閑處理控制水土流失的效果優於水平草帶和水平溝處理。
  7. Two - dimensional numerical simulation of soil water infiltration under bed - irrigating sowing

    坐水播種時耕層土壤水分入滲的二維數值模擬
  8. Father raked the soil smooth for a seed - bed

    父親耙平土壤做播種床。
  9. Plastic mulch increases soil temperature in the bed which promotes faster crop development and earlier yields

    塑料薄膜覆蓋提高苗床的土壤溫度，促進作物較快發育並提早成熟。
  10. Based on the foundation " liquefaction test study on the rapid railroad bed " supported by the railway department, some works on the liquefaction of silty soils have been carried out. in this dissertation, after making a short review of the works on seismically induced soil liquefaction, some research results are presented, which include the following contents. ( 1 ) depending on the dynamic triaxial test, the liquefaction strength of the silty soils is studied and two new models are proposed to evaluate the pore water pressure and the strain of the saturated silty soils during earthquake

    結合鐵道部發展基金項目： 「高速鐵道液化土地基試驗測試研究」 ，本論文概括總結了地震液化的研究現狀，就滬蓉高速鐵路徐州段可液化場地粉土地基的液化特性問題開展了一些研究工作，內容如下： （ 1 ）提出了基於實用目的的粉土的孔隙水壓力增長模式和永久應變勢計算模型，並把此兩模型應用於場地的地震反應分析和地震液化性能的評價中；依靠循環振動三軸試驗技術，對粉土地基的地震液化強度進行了試驗研究；驗證了密實度是粉土液化的重要影響因素。
  11. This kind of instability bulk movement is induced by wave cyclic loading, as a result the slope of bottom bed decrease, water depth increase, and instability bulk movement has the character of subregion, regularity and head erosion, thus it will influence evolvement of region of interest landform, and change flow field and bottom stratum condition continually, so will lead to dynamic influence on structure foundation soil

    這種不穩定塊體運動由波浪循環荷載誘發，其結果使底床整體坡度減緩，水深加大，而且不穩定的塊體運動具有小區域、多發性和溯源侵蝕的特點，將繼續影響著海域以後的水深地形的發展演化，並不斷改變著該區的流場與底床地層條件，對構築物地基土的穩定性產生著動態的影響。
  12. It can work under a variety of dredging conditions with good benefit. because of the complexity in underwater soil, river bed condition and dredging process of a real dredging project, dredging conditions are very often unsteady

    在實際的疏浚作業過程中，由於水下土質、河床形態和作業過程的復雜性，嚴格地講，疏浚工況是非恆定的。
  13. Because the finite element method consider the relation of stress - strain of rock soil, so, it is more accurate and rational than other methods that it calculates side slope stability coefficient. the paper takes the road bed landslide as an synthetical protect system to the prevention of the slope, through the analysis of the origin cause of formation and stability analysis of different position, and adopting different methods to carry on rational and effective protection after studying different positions, in order to put forward the synthetical protection system

    由於有限元計算方法考慮了巖土的應力? ?應變關系，因此，其求解的邊坡穩定系數比其它方法更為精確合理。而對于滑坡的防治本文則採取了路基?滑體綜合防護體系，通過對滑坡成因的分析及不同部位的穩定性分析，研究了不同位置採用不同的方法進行合理有效的防治，以求形成綜合防護體系。
  14. Through analyzing bed ' s response to wave, in the condition that super - stratum is more hard and second - stratum is more soft in region of interest, super static interstitial hydraulic pressure amplitude die away rapidly between stratums, before in sight of boundary between hard and soft stratum, plane effective pressure increase to max. shear stress reach peak value when bed thickness is approximately 2. 7 meters, then it will decrease to the minimum on the place where the flexible soil has a common boundary with the rigidity, so the boundary is the most destroy plane on engineering. on the basis of reconnaissance in situ, in normal situation of sea, the structure slides to the basin along the boundary

    通過對底床在波浪下的響應分析，對于研究區底床上層較硬而第二層較軟的情況，超靜孔隙水壓力幅值在層間交界處迅速衰減，在臨近硬、軟地層交界處前，水平有效應力增至最大，剪切應力在底床厚度大約2 . 7米左右達到峰值，然後減小，到硬、軟層土交界位置，達到最小，因此這個界面就是最容易發生破壞的工程軟弱面，現場勘查證明，即使在正常海況下，構築物也會沿坡以此交界面為滑動面，緩慢向「盆」底滑動。
  15. The technology of embankment filling and foundation bed reinforcement in soft - soil foundation

    軟基地段路堤填築及基床加固技術
  16. A study on the experimental of modified treatment on the expansive soil for expressway bed

    高速公路路基膨脹土改性處理的實驗研究
  17. Based on biot ' s consolidation and simplified sea - bed to two dimensional sea - bed, numerical simulation about the response of sea bed to waves is developed. the assumption was wielding, such as linear wave loading, linear elastic skeleton of soil and darcy ' s law flow

    本文選用了基於biot固結理論，將海床進行二維簡化的情況下海床對波浪響應的數學模型，在模型中採用下列假定：線性波浪作用，線彈性土骨架，孔隙流體的流動滿足達西定律。
  18. A numerical calculation is developed about the response of sea - bed to wave loading on the yellow river delta. we find that : ( 1 ) the effects of wave parameters and soil characteristics on the response of sea - bed to waves are obvious : wave height and wave length are important parameters among wave parameters ; shear modulus is dominating parameter among soil parameters

    並針對黃河口海域的實際情況作了數值計算，分析得到， （ 1 ）影響海床響應的控制因素：在波浪參數中，波高，波長是主要的控制參量；在海床介質參數中，剪切模量是主要的控制參量。
  19. This thesis, according to limestone environmental characteristic and characteristic of construction of highway of mountain area of limestone, sets out in excavating from the road bed of the angle of environmental protection, according to trying not to excavate, how to reduce to excavate, how to reduce and excavate the impact on surrounding environment of the course, how to go on the expressway view and ecological environment and how to carry on environmental quality resume, we employ theories such as engineering of traffic, rock soil engineering, traffic psychology, traffic aesthetics, operations research, etc. we have excavated environmental protection theory and method and carried on research to the mountain area expressway road bed of limestone systematically, propose the road bed to excavate and optimize, slope protect, discard cubic meter of earth and stone deal with, natural river system recuperate recovery, view environmental recovery, environmental quality resume theory system of appraising etc.

    本論文依據石灰巖山區環境特徵和石灰巖山區高速公路建設特徵，從路基開挖中環境保護角度出發，按照盡量不開挖、如何減少開挖、如何減少開挖過程對周圍環境的影響以及如何對高速公路景觀和生態環境進行恢復、如何對建設項目進行環境質量評價等思路，應用交通工程學、巖土工程學、交通心理學、交通美學、運籌學等理論與方法，系統地對石灰巖山區高速公路路基開挖環境保護理論與方法進行了研究，構建了包括路基開挖優化、邊坡防護、土石方處理、自然水系調治恢復、景觀環境恢復、環境質量評價等理論或方法的石灰巖山區高速公路環境保護理論框架，為促進石灰巖山區高速公路的可持續發展提供了基本思路。
  20. The test results in the no - tillage fields with corn rootstalks shown that the sample machine has a good ability to cut and dig corn rootstalks only in the seed beds so that the new no tillage planter can create a good condition of seed bed and have lower power consume. 2 system experiment is conducted to investigate the mechanical properties of rootstalks and soil rootstalk composite. the experiment results include : ? he maximum cutting force decreased exponentially with increasing cutting speed and the moisture contents of rootstalks

    通過對新型免耕播種機的田間生產試驗，證明了切挖處理播種帶玉米根茬原理可行，所開發的機具結構新穎，具有創新性；該機不但能創造無根茬的良好種床條件，有利於種子生長發芽，而且不需大量粉碎根茬，因而擾土量少、整機消耗動力小、破茬入土能力強，有利於充分發揮保護性耕作的優勢。
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