自然試驗 的英文怎麼說

中文拼音 [zìránshìyàn]
自然試驗 英文
natural experiment
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 然 : Ⅰ形容詞（對; 不錯） right; correct Ⅱ代詞（如此; 這樣; 那樣） so; like that Ⅲ連詞[書面語] （然而）...
  • 試 : 名詞（古代占卜用的器具） astrolabe
  • 驗 : 動詞1. （察看; 查考） examine; check; test 2. （產生預期的效果） prove effective; produce the expected result
  • 自然 : 自然at ease; natural; free from affectation
  • 試驗 : trial; experiment; test
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. Seven plots selected from wanglang reserve were distributed in different types of forest and at different altitude, and different plot has different microclimate. soil property, microbial population, soil nutrient content of forest soil were determined in wanglang natural reserve, from may to october 2002 to july 2003, the ecological distribution of three main groups, bacteria, actinomycete and fungi were determined in the forest soils by the cell enumeration methods. six kinds of physiological groups, including ammoniation bacteria, nitrification bacteria, nitrosification bacteria, aerobic autogenesis azotobacter, aerobic cellulose - decomposing bacteria and anaerobic cellulose - decomposing bacteria were enumerated by the most - probable number ( mpn )

    2001年10月在王朗自然保護區內設立了3個定位研究樣地和4個臨時樣地，通過多次現場采樣與室內實驗分析，測定了白樺林、岷江冷杉林、紫果雲杉林、繡線菊-羊茅群落、羊茅群落及高山柳灌木叢等6種不同植物群落內土壤微生物三大類群數量、功能微生物數量、土壤養分，並在固定樣地內使用埋袋法進行了三個埋藏深度的凋落物分解袋試驗，初步研究了枝條、闊葉、針葉等凋落物組分在不同分解階段所含養分的動態變化。
  3. We mensurate the number of the primary soil microbes such as bacteria, fungi and azotobacter with diluting flat technique, and mensurate the number of cellulose decomposing bacteria with mpn technique, and mensurate the biological quantity of the soil microbes with the technique of chloroform suffocating - inundation culture - colour - compared

    本文以長期壟作免耕試驗田為研究對象，採用稀釋平板計數法測定了土壤中主要的微生物細菌、真菌、自生固氮菌數量，用mpn （最大或然值法）測定纖維素分解菌的數量，採用氯仿熏蒸?淹水培養?納氏比色法測定微生物生物量。
  4. Abstract : by means of natural, coagulative and sand peak coagulative settling test, the flowing water test of high, sub, and low turbidity water containing most of coarse silt have been research. some results are concluded

    文摘:通過自然沉澱、混凝和沙峰型混凝沉澱試驗，對以"粗」組分泥沙為主的高濁度水和低濁度水進行了動水試驗研究，取得一些成果
  5. Simultaneously, combine with his own work experience, the author gets an advanced detail and general design steps. and then illustrates an actual engineering which is designed with the article ’ s recommendatory method and steps. by combining with the test results, it is proved that the ground treatment result obtains the design requirement and the commendatory method is right, which is able to provide reference value to the engineering

    本文首先對加筋土的研究現狀做了詳細的介紹和分析，在此基礎之上，對加筋土地基設計方法做了一定的研究，對地基承載力力設計方法做了對比分析，選擇極限分析法作為本文的推薦方法，並結合作者自身的工作經驗，提出了加筋土地基詳細和全面的設計步驟，然後用一個加筋土地基實際工程為例，採用本文推薦的設計方法和步驟進行設計，並通過現場試驗結果，證明該地基處理達到設計要求，也證明了推薦方法計算的準確性，這對廣大工程師在實際工程操作中有較高的參考價值。
  6. Using the 1ap 3 - d hailstorm numerical model, we analyze influence of variation on rainfall amount, hail fallout amount, dynamical process of cloud, microphysical process, mechanism of hail suppression with seeding, and seeding outcome. besides, we use those study outcomes and bring forward some advice about using and improving model. we simulate a hailstorm occurred in nanjing county and analyze influence of raindrop, ice crystal, graupel size distribution on outcome of model

    本文利用中國科學院大氣物理研究所的三維冰雹雲催化數值模式，通過對冰雹雲的模擬和對譜參數的數值試驗結果，分析了冰雹雲中粒子譜形的變化，對雲和降水過程的影響，其中包括雨滴譜、冰晶譜、霰譜的形狀參數對自然雲的發展過程、降雨降雹、雲中微物理過程、霰以及冰雹的形成機制的影響。
  7. Liquids and solids differential mackey test, test for spontaneous heating values of

    液體和固體的自然加熱值的試驗
  8. Compared with straight ray tracing, inversion of bending ray tracing is better when data of test are accurate. on the other hand, natural weight is introduced and numerical simulations and experiments of wlm on inversion of velocity and attenuation are also made, which show that wlm, with resistance of noises and convergence of iteration, may get good re - construction images

    本文引入了物理意義明確的自然權，對基於自然權的加權阻尼最小二乘反演演算法（ wlm ）在速度反演、衰減反演中進行了數值模擬和試驗研究，結果表明wlm均能獲得良好的重建圖像，迭代收斂，抗噪能力強。
  9. On the part of the theory of the automatic test technology used in the rocket engine ground test, on the basis of the architectures and standards of some typical automatic test systems ( ats ), the test action model, ats data model, database model and the universal instrument - driving model are established

    在火箭發動機地面試驗自動測試技術理論方面，在典型自動測試系統（ ats ）的體系結構和相關標準的基礎上，建立了火箭發動機地面試驗測試行為模型、 ats數據模型、數據庫模型和通用儀器驅動模型，然後，建立了面向火箭發動機地面試驗的開放式柔性ats體系結構軟硬體模型。
  10. The histologic lesions were characterized by the remarkable atrophy of intestinal villi, basal vacuolation of enterocytes, increment of the crypt and the villus - to - crypt ratio had significantly decrease. compared with that of noninoculated control chicks. besides. intestinal villi become thin and flat. or cubic, also accompanied with necrosis. many villous enterocytes were detached from the lamina propria and the lamina propria contained a diffuse infiltrate of lymphocytes, plasma cells, macrophages. the characteristic ultrastructural changes observed by electronmicroscope were swelled mitochondria and dilated endo - plasticreticulum. ribosome on the surface of endo - plasticreticulum fall off and the number of ribosome within the cell decrease

    動物回歸試驗中接種兩周齡spf雞， 24h后陸續發病，表現為持續性水樣腹瀉；剖檢可見病雞脫水、小腸內有大量的液體和氣泡、腸粘膜變薄；組織學變化為腸絨毛上皮壞死、脫落，絨毛平均長度減少而隱窩深度增加，固有層中淋巴細胞浸潤。其臨床癥狀及病理組織學變化與自然發病相同。
  11. Rubber, vulcanized - test method of natural storage aging

    硫化橡膠自然貯存老化試驗方法
  12. Test method for measure length of the wool staple natural formation

    羊毛毛叢自然長度試驗方法
  13. An experimental study on the block caving system in fengshan copper mine

    豐山銅礦自然崩落法的試驗研究
  14. Purpose of research and mainly fruit this paper, investigation of overall styling and body structure for improving driver ' s visual field, is about how to extend driver " s visual field and enhance his vision level proceeding with body structure, making the driver be able to detect and identify the latent dangers in time and avoid leading to a high manufacturing cost at the same time. through carrying out creative styling and body structure to downright resolve the matter of blocked driver ' s visual field, basically enhancing vehicle ' s active security and reducing accidents by the roots

    首先分析了國內外汽車工業的發展形勢並對國外同類汽車進行了研究和對比，論述了本研究課題在自主研發和提高汽車主動安全性方面的重要意義。然後結合自身在此領域的研究確定了初步設計方案。通過實車試驗確定了方案的可行性后，便基於skoda - superb轎車進行了方案設計，並從外形設計、內部結構和安全性方面進行了詳細的闡述。
  15. The fieldworks and the test results show that there appears three failure models on the natural slope, that is, rotational slide, translational slide and earth flows. triaxal tests, including the isotropical consolidation drained and undrained compression and anistropically drained tests, are performed on loosely compacted specimens. the critical state line ( csl ) is obtained in the e - lgp " plot based on the results of the above tests

    在野外調查的基礎上，結合試驗成果分析，初步得出自然斜坡破壞的模式，包括旋轉型滑動、平移型滑動及土流等；並對暴雨滑坡轉化成泥石流的影響因素和碎屑物質的運動距離作了定性分析；初步分析了滑坡轉化成泥石流的流態化機理。
  16. In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor

    針對當前黑土利用現狀，本文借鑒眾多學者的研究方法和觀點，在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地，在玉米區進行了不同數量的施肥，通過野外試驗，採集一年自然降雨產流及泥沙樣品，同時採集降雨前後的耕層土壤樣品，研究了黑土區地表徑流對氮磷養分特徵及肥力退化的影響，結果表明：土壤侵蝕和氮磷的流失受諸多因素的影響，降雨量、降雨強度是重要因子，而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子，特別是暴雨，暴雨徑流中氮磷濃度較平時高得多；隨作物生長，覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異，氮磷流失都表現為顯著的差異。
  17. This thesis will put forward a new design project that aimed at discussing the packing sets of natural - draft counter - flow dry cooling tower, which is the research and application of the spray nozzle. the content mainly includes the experimental study of the application of the jnx - 01 spray nozzle in cooling tower, as well as the heating calculation

    本文將針對自然通風逆流濕冷式冷卻塔中影響效率較大的淋水裝置提出設計改進方案，即旋轉式噴濺裝置的研究與應用，內容主要包括jnx - 01型節能旋轉式噴濺裝置及旋轉濺水碟式噴頭在冷卻塔上應用情況的試驗研究及熱力計算。
  18. The main content is : splitting tensile experiments were carried out about the standardized cube bonding specimens ( 150x 150x 150mm3 ) of the new - old concrete after high temperature. the temperature is divided into 9 groups from normal atmospheric temperature to 900, the cooling styles are natural cooling and spraying water cooling ; different interfacial treating methods : brushed with steel - wire brush, man - made chiseling ( not evenly ), man - made chiseling ( quite evenly ) ; different interfacial agents : no interfacial agent, neat cement paste, cement paste mixed with 10 % expanding agent

    主要內容有：本文對75個高溫作用后的標準立方體新老混凝土粘結試件進行了劈拉試驗，溫度從常溫到900c分9個溫度段，降溫方式分自然冷卻和噴水冷卻兩種。著重考察了溫度、降溫方式、界面粗糙度及界面劑對新老混凝土粘結劈拉強度的影響規律，闡述了高溫后粘結強度下降的機理。
  19. At the end of the trial period, the researchers found no changes in natural killer cell activity except in the group taking fish oil

    在試驗末期，除了服用魚油的組，研究人員沒有發現自然殺傷細胞活性有變化。
  20. Counters for applications for various permits and certificates for trade or import export purposes of the agriculture, fisheries and conversation department, applications for incorporation and registration of companies, public searches of the companies registry, registration services for medical and healthcare professionals, registration and licensing services relating to chinese medicines, school dental clinics, sai ying pun dermatological clinic and chai wan social hygiene clinic of the department of health, shroff for receiving payment of debts damages of the department of justice, some support services to schools, teachers and the general public provided by the education and manpower bureau, registration services for electrical workers, lpg cylinder wagons, lifts and escalators, builders lifts tower working platforms and amusement rides provided by the electrical and mechanical services department, processing of sick leave clearance for employees claiming work injury compensation by the labour department, sections dealing with family litigation and insolvency matters and criminal matters of the legal aid department, licensing and port formalities at four marine offices and advance booking of professional ship surveying and inspection service of the marine department, services for offenders and medical social services at department of healths kowloon bay integrated treatment centre provided by the social welfare department, road driving tests and driving ability assessment services to people with disabilities provided by the transport department and customer enquiry centres and meter testing services of the water supplies department will move to a five - day week with effect from january 1, 2007

    漁農自然護理署處理貿易或進出口許可證和證明書申請的櫃臺公司注冊處的申請注冊成立公司及辦理公司登記服務公眾查冊生署的醫護專業人員的注冊服務中醫藥注冊和發牌事務學童牙科診所西營盤皮膚科診所及柴灣社會生科診所律政司的接收償還債款損害賠償繳費處教育統籌局為學校教師和公眾提供的部分支援服務機電工程署的電業工程人員石油氣瓶車升降機及自動梯建築工地升降機塔式工作平臺及機動游戲機的注冊服務勞工處為申索工傷補償的雇員辦理銷假手續法律援助署負責處理家事訴訟清盤及刑事事宜的組別海事處的四個海事分處的發牌服務及關務專業船舶檢驗及檢查服務的預約服務社會福利署的違法者服務及於生署九灣綜合治療中心提供的醫務社會服務運輸署的路試駕駛考試及殘疾人士駕駛能力評估服務，以及水務署的客戶諮詢中心及水表測試服務等，都會在二零零七年一月一日起推行五天工作周。
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