equivalent diameter 中文意思是什麼

equivalent diameter 解釋
當量直徑
  • equivalent : adj 1 相當的，相同的，同等的。2 【化學】等價的，當量的；【數學】等價的；等量的；等勢的；【物理學...
  • diameter : n. 1. 直徑。2. （顯微鏡等的）放大倍數。
  1. The critical concentration and critical particle surface area in constant rate section is studied. the floc density pa and the floc equivalent diameter da are calculated on the basis of experimental data and theoretic analysis

    研究了等速段的臨界濃度、臨界顆粒表面積；分析計算了絮團密度_ 、泥沙絮團當量直徑d _ 。
  2. The in - plane equivalent elastic modulus and tensile strength of stitched composite laminates are studied, and it ' s found that the in - plane equivalent elastic modulus decreases with the increase of stitch density, stitch thread diameter, maximal misalignment angle and the distortion width, and the range is about 5 %. the tensile strength of stitched composite laminate increases with the increase of stitch step and decreases with the stitch space. the

    研究結果表明：隨著縫紉密度、縫紉線直徑、最大纖維偏轉角和縫紉變形區寬度的增加，縫紉復合材料層合板面內等效模量逐漸降低，最大降幅一般在5 %左右；縫紉復合材料層合板的拉伸強度隨縫紉針距的增加而增大，隨縫紉行距的增加而降低，因此縫紉密度對拉伸強度的影響程度要看具體的縫紉針距和行距。
  3. Smith (1962) considered three alternate methods to determine an equivalent diameter of graded sediment.

    史密斯（1962）提出了三種不同方法以計算不均勻沙的當量直徑。
  4. Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system

    該系統可通過沉積參數的精確控制，以控制沉積過程，減少金剛石膜生長過程中的缺陷，並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程；利用微波對材料的選擇加熱特性，通過構造等效方程，並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中，建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型，為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備，並對基片加熱材料進行了設計和優選，以獲取大面積均勻的溫度場區，甚至獲得大於基片臺尺寸的均勻溫度區；作為研究重點之一，開展了微波等離體化學氣相沉積金剛石的成核與生長研究，系統地研究了在（ 100 ）單晶硅基片上mpcvd沉積金剛石膜的實驗過程中，基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響，分別用raman光譜、 x射線衍射（ xrd ） 、掃描電鏡（ sem ） 、紅外透射光譜（ ir ） 、原子力顯微鏡（ afm ）對薄膜進行了表徵，確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。
  5. At the same time, the program corresponding to the proposed method is compiled in fortran90, which is used to analyze the influence of several factors on behaviour of barrettes, including ratio of length to width, ratio of depth to equivalent diameter, ratio of modulus of pile to soil, possion ' s ratio, the finite layer etc. many useful conclusions are obtained from the above analyse

    該方法考慮了壁板樁樁身橫截面的非軸對稱性，並用fortran語言編制了相應的程序，進而分析了多種因素對壁板樁承載特性的影響，包括長寬比、樁徑比、樁土剛度比、泊松比以及有限壓縮層深度等。
  6. At the same time, the corresponding programs on the above two methods can be compiled in frotran90 respectively, which are used to analyze the influence of several factors on behaviour of barrette pile group and barrette pile group - soil - cap interaction, including collocation of pile, ratio of length to width, pile spacing, ratio of depth to equivalent diameter, ratio of modulus of pile to soil, possion ' s ratio, the finite layer, the number of piles etc. lastly a series of model tests on vertically - loaded bahaviour of single pile are made, tests results are analyzed, and the causes of tests failure are preliminarily discussed in this paper

    分析了群樁布置形式、長寬比、樁與樁之間的相對距離，樁徑比、樁土剛度比、泊松比、有限壓縮層深度以及群樁根數等因素對壁板樁群樁和壁板樁群樁?土?承臺的相互共同作用問題的影響。論文最後做了一組壁板樁和圓形樁單樁模型試驗，對試驗數據進行了分析，並對試驗中存在的問題進行了初步探討。
  7. The traffic zone split is studied deeply. the research regards the critical distance of medium - long distance trip as the centroid distance between the two adjoining traffic zones, and uses this critical distance as the equivalent diameter to estimate the area of the traffic zone

    對快速路系統規劃的交通小區劃分進行了深入研究，提出將大城市中長距離出行的這一界定值作為相鄰兩交通小區形心之間的距離，用這一臨界距離值作為交通小區的等價直徑值來估算小區規模。
  8. Its trunk near the base exceeded 60 cm in diameter and towered more than 15 m high, which was equivalent to an eight - storeyed - high building

    植物底部直徑超過六十厘米而高度逾十五米相當于建築物八層樓的高度。
  9. Multi - arm caliper logging tool is mainly used for measuring inner diameter changes of the casings, provides evaluation data such as casing diameter changes, casing wall thickness, outer diameter variations of the casings, elliptic changes and equivalent damaging loading, etc

    多臂井徑測井儀主要用於測量套管內徑變化，提供套管變徑、壁厚、套管外徑變化、橢圓變形及等效破壞載荷等評價資料。
  10. This author has found the most suitable characteristic dimension to be the equivalent passage diameter.

    這個作者發現了更恰當的特性作為當量通道直徑。
  11. Calculating the average circular - capillary - equivalent pore diameter in filter media from measurements of porosity and permeability

    用測量孔隙率和滲透率的方法計算過濾器介質平均循環毛細當量孔徑
  12. Test method for diameter and equivalent diameter of carbon fiber by microscope

    碳纖維直徑和當量直徑檢驗方法
  13. Smith ( 1962 ) considered three alternate methods to determine an equivalent diameter of graded sediment

    史密斯（ 1962 ）提出了三種不同方法以計算不均勻沙的當量直徑。
  14. Petroleums and derivatives. oil content of paraffins and petroleum waxes. method of measuring the equivalent diameter of pores of rigid filters

    石油和衍生物.石蠟和石油蠟中油含量的測定.剛性過濾器等值孔徑測量法
  15. On diameter - type packing measures with respect to equivalent metrics

    等價度量下的直徑型填充測度
  16. The feasibility study of equivalent pile diameter law estimate the vertical bearing capacity of small and single pile

    等值樁徑法估算小口徑樁承載力的可行性
  17. From the study of sheldon spectra and biomass spectra, it can be concluded that biomass increases with body size with a trough at 500um equivalent spherical diameter ( esd )

    對南黃海的三個站位粒徑譜圖形進行比較，發現水深能影響較小生物體（ 31 mesd粒級）的分佈。
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