限制下坡坡度 的英文怎麼說

中文拼音 [xiànzhìxià]
限制下坡坡度 英文
ruling down gradient
  • : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
  • : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
  • : 下動詞1. (用在動詞后,表示由高處到低處) 2. (用在動詞后, 表示有空間, 能容納) 3. (用在動詞后, 表示動作的完成或結果)
  • : Ⅰ名詞(地面傾斜的地方) slope Ⅱ形容詞(傾斜) sloping; slanting
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 限制 : place [impose] restrictions on [to]; astrict; restrict; limit; confine; shut down on [upon]: 限制...
  • 坡度 : falling gradient; slope; inclination; declivity; pitch; batter
  1. And the major results and some new viewpoints were presented as follow : 1 ) sediment content of cn tillage system in runoff process is substantially low compared to st under rainfall with high intensity, showing cn bear the efficient capacity of control soil loss. nevertheless, when soil is saturated, the runoff intensity of both tillage systems is near, implicating cn has the limited function of reducing runoff. 2 ) based on the case analysis of observed all rainfall - runoff generation processes, a ) the initiation time hysteresis of surface runoff generation is notable when rainfall fall upon the unsaturated purple soils, which is attributed to the property of rapid water sorption and much non - capillary porosity

    經近幾年的觀測和理論分析,取得了以結果和創新的認識: 1 )在降雨強較大的情況,保護性耕作? ?聚土免耕的產沙強明顯較常規耕作? ?順耕作的小,說明聚土免耕耕作防治土壤流失是有效的;但當土壤達到飽和后,聚土免耕的徑流強與常規耕作的差異較小,產沙強也增大,因此,聚土免耕防治水土流失的能力是有的。
  2. The temperature and stress field of wagon wheel under the condition of long ramp way cycle braking in daqin line have been simulated by using fem and axial symmetry model results indicate that high stress area appears on the wheel web, and the strength of wheel meets the requirement of routine operation under current braking condition

    摘要採用軸對稱模型和有元方法,模擬了大秦線長大道循環動條件貨車車輪溫和應力場,結果表明車輪高應力區出現在輻板上,現行動條件車輪強滿足使用要求。
  3. By analyzing the relation between the train passing capacity and tunnel length as well as tunnel slopes the upper and lower limits for installing mechanical ventilation in railway double track tunnel have been determined, which provides science foundations for the formulation the ventilation design norm for railway double track tunnels in operation

    通過對列車通過能力與隧道長關系的進一步研究,得出了內燃牽引雙線鐵路隧道設置機械通風的上、,為雙線鐵路隧道運營通風設計規范的訂提供了科學依據。
  4. ( 2 ) study on the mechanics mechanism of the calamity caused by the cave of the highway : based on the investigation in detail along the line of the highway in shan - gan loess plateau, the distribution law, the classification and characteristic of hazard of highway cave are presented ; the calamity mechanism of highway cave opposite side slope and road bed is discussed, especially the mechanism of collapsing of the hidden cave in road bed. propose " the effect of hidden corrosion ", etc. 10 kinds send to mechanism of collapsing. based on the principle of limit balance, the formula of the critical treating thickness of hidden cave is put forward as follows : according to different stratum, different size and depth, the calculation of the critical thickness of the hidden cave of roadbed has been carried on

    ( 2 )公路洞穴的致災力學機理研究:在對陜甘黃土高原區公路沿線黃土洞穴詳細調查基礎上,研究了公路洞穴分佈規律、危害分類及致災特點;公路洞穴對邊及路基的致災機理,重點是路基暗穴致塌機理,並提出了「潛蝕效應」等十種致塌機;利用極平衡原理導出路基暗穴臨界處理厚計算公式如:針對不同地區不同地層,對不同尺寸和埋深的暗穴,進行了路基暗穴臨界處理厚的計算。
  5. With the help of this program, this paper does research on the moved backwards of the slide surface, lengthening the anchor section, the soil nail ' s total force, gets conclusion about relations between the soil nail ' s length and the slope ' s grade, height, soil ' s mechanical parameter ; relations between soil nail ' s total force and coulomb soil pressure. with the help of the large multiuse finite element program ansys, this paper analyzes the soil nailing in one - step ' s slopes, in two - steps " slopes, puts the emphasis on the axis force ' s distributing along the soil nail at each rows, the effect of both the excavating mode and the original slope figure to the axis force of the soil nail, the one another effect between the upper - step slope and the nether - step slope in the soil nail ' s axis force, gets conclusion about the design of soil nail at the first low, different slope body is the same with different excavating mode, the original slope figure has more effect to some than others because of the slope body, the reasonably design of the step width in two - steps slopes, the two - steps excavating and retaining has more virtue than the one - step ' s. through soil pressure analysis this paper does research on the differences and the links between the coulomb soil pressure theory and the rankin ' s, the vertical pressure at the slope surface when the slope surface is inclined and the retaining wall is rough, the soil pressure ' s distributing behind the panel, gets conclusion about the effect of both the slope body inner stability and the slope surface local stability to the soil pressure

    通過分析比較,論證了對數螺旋線型比圓弧形作為邊的假設滑裂面具有較多的工程優點,並為此編了一個採用極平衡法分析土釘支護的fortran語言程序,以此作工具對滑裂面的后移、土釘錨固段的超長、土釘總力的大小等方面作了研究,得出了有關土釘的長與邊角、高、土體力學參數的關系、土釘總力與庫侖土壓力間的關系等結論;採用大型通用有元數值分析程序ansys分別對採用土釘支護的一階邊、二階邊進行分析,重點是研究各排土釘的軸力分佈規律、開挖方式及原始邊形態對土釘的軸力的影響、上階邊在土釘軸力方面的相互作用,得出了有關第一排土釘的設計問題、不同類型的土體應適用於特定的開挖方式、原始開挖出的邊形態對一些類型體的邊土釘支護有較大的影響而對另外一些影響不大、二階邊臺階寬的合理確定、二階開挖及支護比一階時具有較多的工程優點等結論;通過土壓力分析對朗肯、庫侖兩種經典土壓力理論的區別與聯系、面傾斜及墻背有摩擦時的面豎向應力分佈、面板背土壓力的分佈形態作了研究,得出了邊支擋土壓力受體內部穩定與面局部穩定兩個方面的影響、土釘支護面板背土體中卸荷拱的存在對面板受力有利等結論。
  6. In this dissertation, rainfall infiltration, runoff, and soil water redistribution on a hillslope were studied by simulated rainfall experiments, and soil water cycling was investigated by site observation and soil sampling methods. moreover, the reasons for the desiccation of deep soil layer were analyzed, and its assessment indexes and standards were presented. the main results are as follows : ( 1 ) rainfall infiltration into a planar hillslope with a homogeneous isotropic soil could be simply regarded as one - dimensional infiltration process, if soil erosion was prevented

    針對當前該區植被恢復重建中存在的科學問題,以植被建設的關鍵性因素?土壤水分為出發點,通過室內外模擬降雨試驗,研究了地降雨入滲、產流及土壤水分再分佈規律,同時採用定位觀測和采樣分析相結合的方法,分析了地土壤水分的循環與轉化特徵,並初步建立了深層土壤乾燥化程的評價標準,取得的主要結論如: ( 1 )在防止土壤侵蝕的條件,均質地的降雨入滲過程可以簡化為一維。
  7. Bearing capacity and displacement are two main problems in the application of geotechnical engineering. based on a series of pull - out tests using three kinds of paper and a sort of window screening as geogrid, twenty - seven in limit and several in working - stress geogrid - reinforced slope model tests designed through orthogonal principle have been conducted to have obtained the relationship between the bearing capacity and four factors ( i. e. reinforcement, angle of reinforced slope, the designed - length of reinforcement and the distance between layers of reinforcement ). the law of slope lateral ( horizontal ) displacement versus to the height of slope vary with external - load was derived from the model test data, and the main factor affecting the lateral and vertical displacement of geogrid - reinforced slope was obtained through analysis

    承載力(強)和變形是巖土工程應用領域的兩大主要問題,本文以紙和窗紗布模擬加筋土邊的土工格柵,在一系列拉拔試驗的基礎上,以正交設計理論分別安排27個極應力狀態和若干個工作應力狀態加筋土邊模型試驗,並以模型試驗獲得的數據為依據,採用誤差、極差及回歸分析方法,探討了加筋土邊承載力與筋類、筋長、層間距、角4因素的相關關系,獲得了在外荷載作用加筋土邊的側向位移隨高的變化規律(並進行了定性解釋)和頂的豎向位移特性,並分析其主要控因素。
  8. The analysis shows that the depths of the major and auxiliary anchor rods are affected by the cement mortar and its bond strength with the rock body and not affected by the gradient and the height of the rock side slope

    並得到如結論:主次描桿的錨固深只受水泥砂漿與巖體的結合強的影響,不受邊和高
  9. Pwc consulting was appointed after a competitive tendering process to carry out an analytical study on the latest developments in civil service pay administration in australia, canada, new zealand, singapore and the united kingdom. the study looked at features and issues which might be relevant to hong kong, having regard to the history and development of the civil service pay policy and system here

    經過一項競爭性投標后,專責小組委聘了普華永道諮詢有公司,就澳洲、加拿大、紐西蘭、新加和英國在管理公務員薪酬方面的最新發展,進行分析研究,在顧及本港公務員薪酬政策和發展過程的情況,探討香港可以借鏡的地方。
  10. In support of the task force on the review of civil service pay policy and system, pwc consulting were appointed in february 2002 to conduct research into the latest developments in civil service pay administration in selected governments and to identify practices that might be of relevance to hong kong, having regard to the history and development of the civil service pay system here

    月委聘普華永道諮詢有公司協助研究若干海外國家在公務員薪酬管理方面的最新發展,在顧及香港公務員薪酬的歷史和發展,尋找一些可供香港借鑒的做法。本研究以澳洲加拿大紐西蘭新加和英國作為主要探討對象。
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