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开孔率     
相关语句
  opening ratio
    The pressure drop ΔP/Z decreased withincreasing opening ratio Φ, unit height H and decreasing inclination angle β;
    填料层压降△P/Z随开孔率Φ、盘高H的增加以及倾角β的减小而降低;
短句来源
    The heightof mass transfer unit HOG decreased with increasing inclination angle β and decreasingunit height of the packing H ,and influence of opening ratio Φ on the height of masstransfer unit HOG had a suitable value, witch was about 6%-8%.
    气相总传质单元高度HOG随倾角β的增大和盘高H的减小而降低,开孔率φ与气相总传质单元高度HOG无单调的比例关系,而有一个适宜值,该适宜值约为6%~8%。
短句来源
    The results showed that the pressure drop of packing layer ΔP/Z decreased with increasing opening ratio ,unit height of the packing H and decreasing inclination angle β.
    研究结果表明 ,填料层压降ΔP/Z随开孔率、盘高H的增加及倾角 β的减小而降低。
短句来源
    The result shows that the method of increasing evenly the thickness of flat covers for the reinforcement with an opening ratio below 0.5 could not solve the stress concentration problem induced at the edges of openings and realize the reinforcement result;
    结果表明,对于开孔率小于0.5的平盖开孔补强采用均匀增加平盖厚度的方法,不能解决孔边产生的应力集中问题,难以达到补强的效果;
短句来源
    The results showed that the height of mass transfer unit H OG decreased with increasing inclination angle β and decreasing unit height of the packing H ,and influences of opening ratio  on the height of mass transfer unit H OG had a suitable value.
    研究结果表明 ,气相总传质单元高度HOG随着倾角 β的增加、盘高H的减小而降低 ; 开孔率对气相总传质单元高度HOG的影响有一个适宜值。
短句来源
  opening rate
    As crystal nucleating agent ,CB brings about the early arrival of microphase separation, increases the separation level, and finally leads to a low opening rate.
    作为晶体成核剂,它能影响基体海绵的微相分离和分离程度,导致海绵的开孔率较低;
短句来源
    On the contrary, due to three-dimensional tray' s opening designing specially, its opening rate may still improve much.
    对于三维塔板,由于其独特的开孔设计,其开孔率还可以有较大的提高。
短句来源
  open area
    By analyzing the simulation result, we proved that velocity of flow has less effect on the nonuniformity of gas distribution, and it mainly determined by axial position of section above the distributor and open area.
    本文选取集油箱式结构的一个单元,通过CFD模拟给出了气体通过集油箱后的流动特性,并且通过模拟结果证明了气体通过集油箱后,其气体分布的不均匀程度与集油箱的开孔率、距集油箱的截面位置有关,并且回归出三者之间的函数关系。
短句来源
    Thereafter, analyses on hydrodynamic for the dehydration column of mid-temperature technology reactor are carried out, and the poor tray efficiency is attributed to insufficient foam height above the tray. Reduction of the open area is suggested as an effective way to increase the foam height as well as the tray efficiency.
    然后对中温工艺的PX氧化反应器上部脱水段塔板内构件水力学性能进行了分析,确定造成塔板效率低下的原因是塔板上持液量过低,提出用减小塔板开孔率的方法增加泡沫液位高度,进而提高板效,如将原22.7%的开孔率减小到17.1%后,莫佛里板效将由23%增加到36%。
短句来源
  “开孔率”译为未确定词的双语例句
    Study on Performance of Non-Uniform Perforated Compound Tray
    非均匀开孔率复合塔板性能研究
短句来源
    Based on the experimental results, the structural parameters of the NF composite membrane (the pore radius and the ratio of the membrane porosity to the membrane thickness) were discussed on the basis of the fixed-charge model and the pore model.
    根据实验结果关联计算了复合纳滤膜的反射系数和溶质透过系数等膜性能参数,膜孔径、开孔率与膜厚之比等膜结构参数。 运用固定电荷模型和细孔模型分析估算了膜孔径、开孔率与膜厚之比等膜结构参数。
短句来源
    The free area rates of the distributor were 0.266, 0.672 and 2.549 respectively. The heights of the separator were 115mm, 275mm and 420mm respectively.
    实验通过压差法、体积膨胀法测量了气液分离区高度分别为115mm、275mm和420mm以及气体分布装置开孔率分别为0.266、0.672和2.549时反应器中升气管、降液管的气含率以及在整个反应器中的总气含率;
短句来源
    The optimal structures are the ratioof inner and outer tube diameter (d/D) being 0.71, the ratio of inner and outer tubeheight(h/H) being 0.40, sparger with 50% porosity, the volume ratio of filler toreaction mass being 4.0%.
    确定最佳反应器结构为:内外管高度比h/H=0.40,内外管管径比d/D=0.71,填料体积占反应物系总体积4.0%,开孔率50%的圆形渐缩式喷嘴。
短句来源
    The effects of four gas-feedimg types and three gas-distribution on platse boundary specific surface area a,bubble content E and bubbles lift velocity Wn was studied by cold moulding test in a φ280 mm× 2600 mm standard bubbling tower with water-air as eperimental media,in a space velocity less than 60 mm/s.
    以水-空气为试验介质,在φ280mm×260mm标准型鼓泡塔中,于空塔线速U小于60cm/s的条件下,用冷模法考察了4种进气方式和开孔率分别为1.25%,4.18%,12.8%的3种分布板对相界面比表面积a、气含率E、气泡群上升速度Wn的影响。
短句来源
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  opening ratio
The mechanism of internal pressure fluctuation is obtained by using the proposed method in the frequency domain and a new equivalent opening ratio is defined to evaluate internal pressure fluctuation.
      
Helmholtz resonance is likely to occur when the equivalent opening ratio is adequately high, and controlling individual opening dimension is an effective strategy for avoiding Helmholtz resonance in engineering.
      
The technique is illustrated in the case of a plane turbulent impinging twin-jet with an opening ratio of 10.
      
It is also demonstrated that large chirp and mismatch of the phase inversion reduces the eye opening ratio (EOR) which can seriously affect the performance of the wavelength converter to be used as a sub-system component in all-optical networks.
      
The effects of the feed rate, the gas flowrate and the opening ratio and hole diameter of the perforated plates on the operating stability of the fluidized bed were examined.
      
更多          
  opening rate
This is because energy losses by friction and water surface oscillations increase as the approach velocity from the gate increases as the gate opening rate is larger than 0.4.
      
The opening rate-constant appears to be voltage independent.
      
The probability of channel opening at high concentration was found to be >amp;gt;0.9 for each, thus showing (a) that their efficacy is high and (b) that the opening rate for the fully-liganded channel is higher than previously thought.
      
External Ba2+ decreased the Na channel opening rate and increased the closing rate.
      
At voltages close to the midpoint of the gating curve, the opening rate decreased by a factor of 1/2.8 while the closing rate increased by 2.0-fold.
      
更多          
  open area
A population of the Japanese scallop, Mizuhopecten yessoensis, found in the open area of Peter the Great Bay (Sea of Japan), which was not protected against southeastern summer monsoons, has been studied.
      
The aggregation was the lowest in the open area of a neutral lake.
      
The flows almost completely covered the smoothed flat open area of the volcano and even invaded the larch forest surrounding the volcano, where they bent, overturned, broke, and occasionally uprooted and dragged over some distance some large trees.
      
Nesting preferences discovered for the nest tree and its surroundings, included height and diameter of trees, age of the forest stand, distance to the nearest open area or forest road and occurrence of open areas in the vicinity of the nest.
      
In all three groups, mean density of faeces decreased in the following order: shelter, edges of arena, area around shelter, remainder of open area.
      
更多          
  open cell content
Adjusted with triisopropanolamine or an oxypropylated triamine to hydroxyl equivalent of either 100 or 120, the polyols yielded rigid foams of density 1.5-2.0 lb/ft3, open cell content 15-19%, and compressive strength 34-49 psi.
      
At hydroxyl equivalent 100, foams had density 1.6-1.8, open cell content 20-21%, and compressive strength 34-39 psi; in flammability tests burned >amp;lt;20% of length.
      
Open cell content, for foams made at the equivalent wt of 100, ranged from 14-21%; at the equivalent wt of 120, from 17-27%.
      
Severe cell coalescence in the linear PP was surmised from the high degree of open cell content.
      


Converflo headbox 4s a new type headbox widely used in recent years With the increase of importing this headbox. it has been a vital subject to study for developing the paper machine in our country.A studying model called "function element of fluid carrying" is established and the transfer mechanism of Converflo headbox is studied. The paper analyzed the influence factor caused by machine velocity, pulp consistency and the open area of holey plate. The optimal machine velocity, open area of holey plate, the...

Converflo headbox 4s a new type headbox widely used in recent years With the increase of importing this headbox. it has been a vital subject to study for developing the paper machine in our country.A studying model called "function element of fluid carrying" is established and the transfer mechanism of Converflo headbox is studied. The paper analyzed the influence factor caused by machine velocity, pulp consistency and the open area of holey plate. The optimal machine velocity, open area of holey plate, the optimal Ub and R for operation has been investigated. By regression calculus from experiment data, flow resislance equation of bank tube, perforated plate and converging channel are given.

本文用实验模拟的方法,对Converflo流浆箱纸浆流送机理进行了探讨,并提出了流送功能元的概念及研究模式。对孔扳开孔事、车速、纸浆浓度等因素对Converflo流浆箱操作状态的影响进行了研究,找出了最佳孔板开孔率及最佳车速范围以及相对应的流送功能元最佳阻抗因子和最佳比客流。 实验结果表明,Converflo流浆箱具有浓度适应范围大,布浆稳定等优点,但只适用于中高速纸机。若将其结构重新设计,有可能应用干低中速纸机。

In Heilongjiang Polyester Fiber Factory, a set of melt pre-filter has been designed coincidently with the reform of high pressure plug fittings in domestic VD 405 and VC 406 spinning machines in order to relieve the clogging of metering pumps, this pre-filter has not only the functions of removing the impurities but also increasing the turbulent flow of the melt, helps the complete mixing so as to improving the fiber quality, the design of the pre-filter includes the diameter, amount and distribution of holes...

In Heilongjiang Polyester Fiber Factory, a set of melt pre-filter has been designed coincidently with the reform of high pressure plug fittings in domestic VD 405 and VC 406 spinning machines in order to relieve the clogging of metering pumps, this pre-filter has not only the functions of removing the impurities but also increasing the turbulent flow of the melt, helps the complete mixing so as to improving the fiber quality, the design of the pre-filter includes the diameter, amount and distribution of holes on filter screen, the space between filter and top cap, the pressure drop and strenth of filter screen etc.

黑龙江涤纶厂为了解决计量泵卡损问题,对国产VD405和VC406纺丝机的高压闷头结合件进行改造的同时,成功地设计了一套熔体粗过滤器。这种熔体粗过滤器不仅有过滤杂质的功能,而且可增加熔体的湍流,起到充分混合作用,对提高纤维质量有利。熔体粗过滤器的设计内容包括:过滤网孔径d的确定;孔排布形式;开孔率的确定;粗过滤器与端盖围成空腔的设计;熔体过滤器阻力降和过滤网强度校核。

The effects of surfactants and ethylene glycol on phenolic resin in foaming process andproperties of the foam were studied. The foaming conditions for controling foam propertieswas determined. And the surface chemistry of phenolic resin in foaming process was brieflydiscussed.

研究了复合表面活性剂和乙二醇对酚醛树脂发泡过程及泡沫体物性的影响,确定了制取不同密度、开孔率和吸水量的泡沫体的发泡条件,初步探讨了酚醛树脂发泡过程的表面化学。

 
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