physical sampling 中文意思是什麼
physical sampling
解釋
物理取樣-
Besides, this paper adopts the random finite element method, uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock, coefficient of lateral pressure, height or buried depth of vertical loading, elastic resistance coefficients of surrounding rock, elastic modulus of support structure, unit weight of concrete, thickness of the structure as well as torsional strength and compression strength of concrete and etc., as random variables, applies the monte - carlo method to sampling by computer, preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel, and obtains the related displacement of the lining, mean value and variance of internal force, and computed the reliability index of lining structures
此外，本文採用隨機有限元方法，將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量，應用蒙特卡洛理論進行計算機隨機取樣，對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估，得出了襯砌的相關位移與內力的均值和方差，並計算出了相應的襯砌結構可靠指標。 -
First, the structure of sdr and the physical - channel of td - scdma are expounded, then software and hardware models of the terminal receiver, which use the sdr structure of wideband and bandpass sampling in if ( intermediate frequency ), are put forward
首先對軟體無線電的組成結構和td - scdma物理通道進行了闡述，在此基礎上提出了基於寬帶中頻帶通采樣軟體無線電結構的td - scdma終端接收機的軟硬體模塊設計方案。 -
Monte carlo is a method that approximately solves mathematic or physical problems by statistical sampling theory. when comes to bayesian classification, it firstly gets the conditional probability distribution of the unlabelled classes based on the known prior probability. then, it uses some kind of sampler to get the stochastic data that satisfy the distribution as noted just before one by one
蒙特卡羅是一種採用統計抽樣理論近似求解數學或物理問題的方法，它在用於解決貝葉斯分類時，首先根據已知的先驗概率獲得各個類標號未知類的條件概率分佈，然後利用某種抽樣器，分別得到滿足這些條件分佈的隨機數據，最後統計這些隨機數據，就可以得到各個類標號未知類的后驗概率分佈。 -
Standard practice for sampling and preparation of wet blue for physical and chemical tests
物理和化學試驗用濕鉻鞣革的取樣和制備的標準實施規程 -
Through measuring slope forms on the spot, serried sampling, physical and chemical analyzing, and measuring soil erosion from natural and artificial rainfalls, the project researched in the approaches and behaviors of soil erosion affecting contents of soil carbon and nutrient, and the law of soil carbon and nutrient distributing in micro - topographty under influences of soil erosion. in the same time, supported by geographic information system, models of soil carbon and nutrient changing with soil erosion have been built, and spatial processes of soil erosion affecting soil carbon and nutrient have been simulated, and annual and long - term changing of soil carbon and nutrient under impact of soil erosion have been estimated and forecasted, and synchronously, a elementary assessment for different soil erosion management has b een performed by using the models built in the study
本研究以三峽庫區秭歸縣水田壩鄉王家橋小流域四個徑流試驗區二十個標準小區為研究對象，通過坡形實地測量、坡面密集采樣的顆粒分析和養分含量分析以及人工模擬降雨實驗，研究了土壤侵蝕對土壤碳和養分的影響途徑和表現，侵蝕作用影響下土壤碳和養分在微地形空間的分佈規律；同時，在地理信息系統的支持下，建立了侵蝕條件下的土壤碳和養分變化模型，模擬了侵蝕對土壤碳和養分影響的空間過程，預測了侵蝕影響下土壤碳和養分的年變化及多年變化，並通過研究建立的模型對不同侵蝕控制措施進行了初步的效益評價。 -
Compared with the destructive assay ( da ), nda has some obvious advantages : it is easy to make measurement automatically without sampling and changing the physical and chemical state of nuclear material, low cost, less operator exposure of radiation, much faster than chemical analysis and no hazards and wastes generated
與化學分析即破壞性分析（ da ： destructiveanalysis ）相比， nda分析具有不破壞樣品、容易實現自動化、快速、簡便、費用低廉和不產生放射性廢物等優點。 nda核標準樣品的制備既費錢又費時。 -
The study area is located in wangdonggou, a small watershed in changwu county, shaanxi province. with the principles of combination of qualitative and quantitative analysis, macroscopic and microscopic analysis, the assessment indexes of soil erosion are selected through a series processes such as field investigation, soil sampling, physical and chemical properties analysis of soil, analysis of relations between the influencing indexes and soil erosion, statistics method, and so on. every index is divided into five grades according to the specific criterion, and its weight is drawn by ahp method
本文以陜西省長武縣王東溝小流域為研究區，在堅持定性分析與定量分析相結合、宏觀與微觀相結合的原則下，通過實地野外調查和採集樣品，土壤樣品的理化分析，土壤侵蝕影響因素的分析，利用數理統計分析方法，篩選出了王東溝流域土壤侵蝕定量評價指標；並對這些指標進行土壤侵蝕評價等級的劃分及權重的確定，從而建立了評價指標體系。 -
Sampling and physical testing of leather - measurement of water vapour absorption
皮革抽樣方法和物理試驗.水蒸氣吸收測量.補充件2 -
Fertilizers - sampling - methods for preparation of samples of solid fertilizer for chemical and physical analysis
肥料.第2部分:取樣.第8節:固體肥料理化分析試樣制備方法 -
Analysis of spices and condiments - sampling for chemical, physical and sensory analysis
香料和調料的分析.化學物理和感官分析用取樣 -
Standard practice for sampling leather for physical and chemical tests
物理和化學試驗用皮革取樣的標準實施規范 -
Sampling and analysis of glass - making sands - methods for sampling and physical testing of glass - making sands
玻璃製造用砂的取樣和分析.玻璃製造用砂的取樣方法和物理試驗 -
Machine - made textile floor coverings. sampling and cutting specimens for physical tests
機織地毯.物理試驗用試樣的取樣和裁剪 -
Sampling method of physical and chemical properties of ramie fiber
苎麻理化性能試驗取樣方法 -
With a party of 31 scientists, technicians and students onboard our research vessel, we spent almost two months sampling the physical and chemical properties of the western south atlantic, from top to bottom, starting near antarctica and ending near the equator
研究船上共有31位科學家、技師和學生，我們花了將近兩個月，在南大西洋西側進行海水物理與化學性質的取樣剖面，涵蓋區域從南極附近開始，到赤道附近結束。 -
Leather - chemical, physical and mechanical and fastness tests - sampling location
皮革.化學物理機械和色牢度試驗.取樣部位 -
Leather - chemical, physical and mechanical and fastness tests - sampling location iso 2418 : 2002 ; german version en iso 2418 : 2002
皮革.化學物理機械和色牢度試驗.抽樣位置 -
Sampling and physical inspection, weighing, marine, lab testing service for coal and coke, non - ferrous metal, matallurgical products, chemical and industry, fertilizer and steel, cement, industrial mineral, etc
礦產部提供煤和焦炭、有色金屬、冶金產品、化工、化肥、鋼鐵、水泥、工業礦等礦產品的檢驗和化驗分析服務，以及船舶檢驗服務。 -
Iron ores sinter and pellets - sampling and sample preparation for physical testing
物理試驗用試樣的取樣和制樣方法 -
Sampling and physical analysis methods for municipal domestic refuse
城市生活垃圾采樣和物理分析方法
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