bed density 中文意思是什麼
bed density
解釋
床層密度-
Abstract : the reasonable distribution of mix bulk density and partical size on the transverse and lenghwise direction of sintering pallet, the relationship between segregation index and mix bulk density were discussed. the ways for improving mix bulk density, enhancing mix partical segregation, decreasing side wall effect and increasing bed surface flatness were proposed
文摘:論述了臺車上橫向、縱向混合料容積密度及粒度的合理分佈，偏析指數和混合料容積密度的關系，提出了改善臺車上混合料容積密度，加大混合料粒度偏析，降低邊緣效應及提高料面平整度的布料途徑。 -
With the tracing particles, the sinking velocity of middle and higher density particles that pass through the lower density coal particles in jig bed for different jigging air circle were measured. the results showed that the air cycle with a long inlet period can promote the separation of middle and higher density particles and lower density coal particles
運用彩色人工顆粒，對不同跳汰周期下中、高密度顆粒在低密度煤炭床層中的沉降速度進行了示蹤研究，確認長進氣期周期有利於中、高密度顆粒與低密度煤炭顆粒的分離。 -
Design and combustion technology of density msw fluidized bed incinerator
流化床垃圾焚燒爐設計和焚燒工藝的研究 -
The measurement was made on a gas - solid fluidized bed in our laboratory. the pressure fluctuation signals were obtained and analyzed through power spectrum density. the relation of the particle size to pressure fluctuation and other parameters was studied by using fuzzy set theory
在實驗室條件下對氣-固流化床的顆粒進行了測量，通過功率譜密度對所獲得的壓力波動進行了分析，並應用模糊集理論對顆粒尺寸與壓力波動及其它影響參數的關系進行了研究。 -
The conclusions are as follows : ( 1 ) high - pressure water - atomization can be used to produce a pre - alloyed steel powder with high apparent density, high green strength, size - stability after sintering and low hydrogen - loss content ; ( 2 ) the higher smelting temperature and / or water pressure, the finer particle size of steel powders ; ( 3 ) when the atomization angle holds in a reasonable value ' s range the obtained powder will have a better particle size distribution ; ( 4 ) an optimum atomization technological parameters : liquid steel flux, water pressure and water prick angle was obtained ( 5 ) reduction variables ( temperature, holding time, material - bed ' s thickness and reducing gas flux ) have a significant effect on the particle agglomeration and properties of final powder was given ( 6 ) different alloying methods were developed to modify properties of ferrous powder materials and hence to broaden its applications in ferrous powder metallurgy industry
本文系統研究了水霧化預合金鋼粉生產工藝及合金化方法對鐵基粉末冶金材料性能影響，詳細研究了冶煉、霧化、還原工藝參數對預合金鋼粉化學成份和物理性能影響，並得出如下結論： （ 1 ）採用高壓水霧化技術可用於生產高密度、高強度、尺寸穩定性的低氫損含量的水霧化預合金鋼粉。 （ 2 ）冶煉溫度越高，高壓水壓力越大，所得生粉顆粒粒度越細。 （ 3 ）水錐角調整在一個適當角度范圍內可獲得粒度組成較好的生粉。 -
The maim factors affecting the velocity profiles are the viscosity near the bed, particle grid resistance and the density gradient
影響流速分佈的主要因素有底部粘度、顆粒格柵阻尼和密度梯度。 -
Put up the cold experiment of the three - phase fluidized bed with multiple orifice balls, research on the influence of the superficial gas velocity, the filler static height and the liquid density on the resistance character and the desulfurized efficiency, summarize the virtue of multiple orifice balls
摘要對多孔球為填料的三相流化床進行冷態試驗研究，研究不同工況下氣體空塔流速、填料靜止高度、噴淋密度等因素對流化床阻力特性和脫硫效率的影響。 -
Testing the vibration acceleration signal of rail top ( lateral and vertical ), rail middle ( lateral ), rail bed side ( vertical ) and rail bed middle ( vertical ) with dasp vibration testing system, calculation of signals obtains the power spectral density and frequency response curves of different position
測試橫向和垂向激振力下鋼軌不同部位的振動信號，進行頻譜分析，得出不同部位的頻率響應曲線。通過對頻響曲線的分析，得出不同方向激振力下鋼軌振動能量集中的頻率，確定不同方向激振力下鋼軌的主要振動部位和振動形式。 -
When the density of the packing material is smaller than that of the liquid, the packed bed becomes less dense and will expand before flooding
當填料密度比液體密度小時，在液泛前填料會發生松動和膨脹，通過修正填料床的孔隙度可以計算膨脹填料床的壓降。 -
Conclusion this method can be used to evaluate blood circulation quantitatively or semi - quantitatively in tissue or organs, through measuring the density of their microvascular bed without artificial errors, such as dilatation and rupture of blood vessels resulted from perfusion
結論該方法不需灌注，對血管無擴張作用，無人為改變，適用於皮瓣微血管形態學研究和定量分析。 -
Numerical simulation of solid flows and density distribution in air dense medium fluidized bed
空氣重介流化床介質流動和床層密度分佈研究
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