針葉材 的英文怎麼說

中文拼音 [zhēnyècái]
針葉材 英文
soft wood weiches holz
  • 針 : Ⅰ名詞1 （縫衣物用的工具） needle 2 （細長像針的東西） needle like things 3 （針劑） injection; sh...
  • 材 : 名詞1 （木料） timber 2 （泛指可以直接製成成品的東西; 材料） material 3 （供寫作或參考的資料） ma...
  • 針葉 : needle針葉樹 [植物學] coniferous tree; conifer; cone bearer; 針葉樹林 coniferous forest; aciculis...
  1. Plastic dehydration tablets centrifugal machine is a granulator against wondering when additional cooling water outside of vertical separation, dewatering plate leaf machine, all use stainless steel materials, in particular strip grid, dehydration, and plastics industries is the preferred equipment

    塑料粒離心脫水機是一種針對逆料造粒時附加的冷卻水進行外分離的立式葉板式離心脫水機，全部採用不銹鋼材料，條狀特別格柵，脫水效果好，是塑料行業首選設備。
  2. Skirting boards made of northern coniferous timber

    北歐針葉木材制護墻板
  3. Strength grading of wood - part 1 : coniferous sawn timber

    木材強度分級.第1部分:針葉鋸木木材
  4. Climatological data from fossil pollen, leaves and wood indicate that the cretaceous forests of northern alaska consisted of a mixed canopy that included deciduous conifers with an understory of flowering plants, ferns and cycads

    由花粉、葉子和木材化石?集到的氣候資料顯示，阿拉斯加北部的白堊紀森林有混合型林冠，包括了落葉針葉林以及林下的開花植物、蕨類和蘇鐵。
  5. Very slow-grown softwoods have excellent workability.

    生長非常慢的針葉材有著特別好的加工性能。
  6. Building timber for wood building components ; quality conditions for building logs softwood

    木材建築構件用木材.建築原木針葉樹材的質量條件
  7. Clearing the massive conifer forests of minnesota continued into the first decades of the 20th century, when production peaked in 1905

    明尼蘇達州大片針葉樹森林的採伐一直持續到20世紀的最初數十年，木材產量在1905年時達到最高峰。
  8. The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade

    葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。
  9. The coloring material results from contact of the water with organic debris, such as leaves, needles of conifers and wood, an in various stage of decomposition.

    著色物質是由水與有機殘渣，如樹葉、針葉樹的針葉和木材，以及所有這些物質在各個階段的分解產物相接觸而產生的。
  10. Import and export, production of hardwood and softwood timber, logs lumber veneer, woodproducts, global trade contacts

    從事全球范圍內的進口和出口以及生產闊葉木和針葉木，原木/鋸材/單板/木製品。
  11. The three - dimensional flow - resistor network for longitudinal gas permeability of softwoods

    針葉樹材縱向氣體滲透的三維流阻網路
  12. The three - dimensional flow - resistor network for radial and tangential gas permeability of softwoods

    針葉樹材徑向和弦向氣體滲透的三維流阻網路
  13. Coniferous timber ; dimensions of cross - sections and static values, goods sawn for dimensions and specification

    針葉樹材.截面尺寸和靜態值.鋸材的尺寸和規格
  14. Softwood ; cross - sectional dimensions and static values for sawn timber, square timber stock and roof battens

    針葉樹材.鋸材的截面尺寸和靜態值.方木和屋面板條
  15. Coniferous sawn timber

    針葉樹鋸材
  16. The solution formula of dwell time is deduced by using the pulse iteration method and the smoothing fourier transition method, and the formula can be simplified referring to workpiece shape. according to the anastomotic status of the tool and workpiece surface, we present the new model of the inherent relation among local pressure density, removal rate, convergence ratio and residual errors, and the corresponding formulas are given. the forming cause of the edge effect in the polishing process is analyzed, and the means which reduces the edge effect is put forward

    2 、針對計算機控制光學表面成形（ ccos ）的加工方式、誤差收斂特點，研製了去除函數呈高斯分佈的雙轉子結構研拋模；採用脈沖迭代法、平滑因子傅立葉變換法推導出駐留時間的演算法，求解過程中根據工件面形的特點作了各種形式的簡化；提出了工件表面和研拋模的吻合誤差與局部壓強、材料去除率、收斂比之間內在關系的數學模型，並推導出相應的計算公式；分析了邊緣效應產生的原因，在加工過程中採用相對壓力因子對去除函數進行修正，可以消除邊緣效應的影響。
  17. Changes in h2o2 generation in guard cells of vicia faba induced by aba were measured by using fluorescence probe, 8 - hydroxypyrene - l, 3, 6 - trisulfonic acid ( hpts ). examination of epidermis peel was performed using a laser scanning confocal microscope ( lscm ) and spectrofluorometer, set to an excitation light of 405 nm and an emission light of 512 ran

    以蠶豆葉片下表皮為材料，將熒光探針hpts導入蠶豆氣孔保衛細胞內，利用熒光光譜和激光共聚焦顯微鏡技術，檢測了aba誘導蠶豆氣孔關閉過程中h2o2的產生。
  18. Round and sawn timber - permitted deviations and preferred sizes - part 1 : softwood sawn timber including amendment a1 : 1999 ; german version en 1313 - 1 : 1997 a1 : 1999

    圓木材和木板.允許偏差和優選尺寸.第1部份:針葉木板
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