bed diameter 中文意思是什麼
bed diameter
解釋
料層直徑-
The experimental results showed that the maximum pressure drop and the operational pressure drop were related with particles diameter, bed height and superficial velocity, and the latter was also related with bed structure
實驗表明：雙噴嘴矩形噴動床的最大噴動壓降和操作壓降與顆粒粒徑、床層高度及表觀氣速有關，而操作壓降還與床體結構有關。 -
Curves in actual production, such as hole diameter, bed thickness, mud invasion, shale content, electrofiltration potential, etc. are analyzed. correspondent calibrating methods are proposed
對影響自然電位曲線的各種因素井徑層厚泥漿侵入泥質含量過濾電位等進行了分析，並對其影響因素提出了校正方法。 -
Based on the topographic features and data of sediment particle size of bed load at the fluctuating backwater reach of liujiaxia reservoir, the streamwise variation and variation process of median diameter of bed load during silting and scouring periods of the fluctuating backwater reach are analyzed, and it can be seen that the turning point for the sediment diameter variation from coarse to fine is located at the outlet of shigou gorge of the fluctuating backwater reach
摘要根據劉家峽水庫變動回水區的河段地形特徵和歷年河床質泥沙粒徑級配資料，分析了變動回水區河段淤積和沖刷時，河床質泥沙中值粒徑的沿程變化和歷年河床質泥沙中值粒徑變化過程，並指出粒徑分佈由粗變細的轉折點在變動回水區寺溝峽峽口處。 -
Through choosing different diameter of sand granule, using fecl3 and pac as the coagulants, doing paralleled test through standard filtration column compared with referenced filtration columns ( the coarser and the finer sand granule used as filtration media separately ), the thesis investigates the correlation between the filtration behavior and the depth of the deep bed l, the diameter of the sand granule d
本文採用不同粒徑的石英砂濾料，以fecl _ 3 、 pac作為混凝劑，通過進行標準濾池與參照濾池（分別裝填細濾料、粗濾料）的平行對比試驗，研究濾料粒徑改變后，濾池過濾特性與濾池深度l 、濾料粒徑d的相關關系。 -
The compensated ability varies with the difference of bed slowness and changes of hole diameter
隨著地層時差的不同和擴徑量的不同，雙發雙收聲系的補償能力也不同。 -
It was found that the ultra - fine powder can flow smoothly in a spouted bed with a draft tube under some sorts of design parameter and operating condition, thus a new effective method to improve fluidization quality of the ultra - fine powders is obtained ; at higher supplied gas velocity, an increase in the solid circulation rate is observed ; the extent of the distance between the nozzle and the draft tube inlet result in the promotion of the solid circulation rate ; the solid circulation rate increase with increasing the draft tube diameter or the bed mass ; the gas bypassing is nearly zero in the present work ; and the solid flow in the annulus is observed as a moving bed
結果表明：在一定的床層結構和操作條件下，超細粉可以在導向管噴動床中實現平穩流化，從而為改善超細粉的流化質量提供了一種有效的新方法；固體循環速率與噴動氣流量、導向管直徑、導向管底部與噴嘴出口間距以及床層裝填量成正比；氣體則基本上不存在「旁路」現象；環隙區中的顆粒流動表現為一移動床特徵。 -
Abstract : making use of the method of regression analysis, an e xperimental study of multiple factors change have been made in batch vibrated fl uidized bed. the mathematical model is set up between the diameter of particle an d the technological parameter. the effect of technological parameter on granulati on is discussed
文摘:利用回歸分析方法在間歇操作的振動流化床中進行了多因素變化試驗研究，建立了顆粒直徑與工藝參數之間的數學模型，探討工藝參數對造粒的影響。 -
The results approve that i ac i is a good parameter to be a token of the diameter distributing of particles. then a criterion of mean fluctuation difference is put forward for b particle. fluctuation complexity varied with different particle, static bed height diameter particle and axis position of sensor are studied
本文認為是顆粒密度的差異造成漲落復雜性均值的差異，而平均漲落偏差| c |廣定程度上是顆粒粒徑分佈的一個重要衡量指標，而且針對b粒子提出了平均漲落偏差判據，實驗數據和該判據有很好地符合。 -
In designing the deep bed, the empirical formula l / de = 800 is used as the basis. however, it has been proved that the formula cannot precisely describe the functional relationship and the correlation degree between the nitration behavior of the deep bed filtration process, the depth of the deep bed and the diameter of the sand granule, and it is restricted greatly in the practical application of finding a suitable depth of the deep bed
目前，濾池的設計通常採用經驗公式i d _ e = 800作為設計濾池厚度的依據，但實踐證明此經驗公式還不能準確地反應濾池過濾特性與濾池深度l 、濾料粒徑d的相關關系及相關程度，在實際應用中受到很大限制。 -
Based on the numerical simulation for the large - diameter cylinder pile ' s 3d - circumferential flow under wave - flow co - function b using fvm, this paper analyzes the complicated 3d - torrent near the large - diameter cylinder pile, and gives the 3d - flow distribution, the stress distribution on the surface of cylinder pile and in the bed near the cylinder pile, furthermore, analyzes local scour of wave flow in the bed near the cylinder pile
摘要通過應用有限體積法對在波流共同作用下大直徑圓柱繞流現象進行三維數值模擬，對圓柱體局部復雜流動進行了三維湍流計算分析，給出了三維流場、圓柱體表面及其所在局部底床床面應力分佈，並在此基礎上對圓柱體所在底床的局部沖刷進行了初步分析。 -
Fluidized behaviors of ultra - fine powder caco3 of mean diameter 5 um in a spouted bed with a draft tube were investigated, studying the effects of geometry and operating parameters on the two - phase fluidized characters such as the initial spouted behavior, the solid circulation rate, the gas flow distribution in the spout and the annulus, and the solid flow in the annulus
本研究以平均粒徑為5 m的caco _ 3超細粉為物料，對超細粉在導向管噴動床中的流化行為進行了系統的實驗研究，考察了床層結構和操作條件對起始噴動行為、固體循環速率、氣體在床層雙區中的分配以及固體顆粒在環隙區中的流動等氣固兩相流動特徵的影響。 -
Fluidization has been assumed as an efficient means of contacting different particles in various fields such as chemical, metallurgical and pharmaceutical industries. however, the hydro - dynamical behavior of gas - solid bed is very complex. in this paper, based on a large amount of experimental data, complexity theory are adopted as a new method to study on the multi - signals especially pressure signal in wide flow region in gas solid fluidized bed which respective diameter are 114mm and 250mm
本文在氣固流化床中引入復雜性理論作為主要的研究工具，在114mm和250mm床徑氣固流化床中進行了大量的實驗，選用分別屬于a類和b類的粒子作為固體顆粒，在寬流域的范圍內對流化床壓力信號、顆粒濃度信號，尤其是壓力信號進行了研究。 -
Theoretical analysis shows that the filtration behaviors of the deep bed, that are the head loss and turbidity of the effluence water, have the correlation o f l / d2 with the deep bed when the diameter of the filtration media is changed, if the depth of the deep bed is designed according to the relationship of l / d2, the filtration behavior of the deep bed will have a closer similarity with that of the original one
理論分析表明，濾池的過濾特性，即濾池的水頭損失和出水濁度與濾池的l d ~ 2成正比。改變濾料粒徑后，按照l d ~ 2的關系來確定濾池深度，與原濾池的過濾特性將保持更為良好的相似性。
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