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high-porosity
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  高孔隙率
     Study on high-porosity poly(vinylidene fluoride) hollow fiber ultrafiltration membrane
     高孔隙率聚偏氟乙烯中空纤维超滤膜的研究
短句来源
     L/(m\+2·h) and the rejection rate with cut- off molecular weight of 67 000 was about 95% Based on the measurements of the permeation fluxes of water and the rejection rates of various protein solutions, the optimum wetspinning conditions of PVDF hollow fiber ultrafiltration(UF) membranes were obtained and the method for the fabrication of high-porosity PVDF hollow fiber UF membranes has been proposed
     通过测定纯水的通量、不同分子量蛋白质溶液的通量和截留率 ,确定了较好的制膜条件 ,从而可提出纺制高孔隙率PVDF中空纤维超滤膜的方法 .
短句来源
  “high-porosity”译为未确定词的双语例句
     The high-porosity alumina carriers were obtained with surface areas (≤150 m2·g-1 )and surface areas (≥250 m2·g-1).
     加入表面活性剂使氧化铝微孔分布向小孔方向迁移,比表面增加,制备出了低比表面(≤150m2·g-1)和高比表面(≥250m2·g-1)的大孔容氧化铝载体。
短句来源
     Tensile Strength of High-Porosity Metals
     高孔率金属材料的抗拉强度
短句来源
     Characteristics of diagenesis saline lake environment and its effect on high-porosity zones
     盐湖环境成岩作用特征及其对高孔隙带形成的影响
短句来源
     The study shows that, the reservoir is a set of sandstone body, its lithology is mainly siltstone, its compositional maturity and structural maturity are all lower, and it is high-porosity and high-permeability reservoir.
     研究表明胜坨油田沙二段三角洲相储层总体上为一套砂(砾)岩体,岩性以粉细砂岩为主,成分成熟度及结构成熟度均较低,但储层孔渗性较好,属于高孔高渗性储层.
短句来源
     The development of high-porosity foamed nickel
     高孔隙度金属—泡沫镍的研制
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  相似匹配句对
     high vvearability.
     耐磨性高.
短句来源
     the value of E was high;
     反应活化能较高;
短句来源
     O - resistance is high.
     后者化验:血沉明显增快,抗“O”增高。
短句来源
     high-technology;
     产业高技术化;
短句来源
     b) the primary porosity of rock;
     b)岩石的原生孔隙度;
短句来源
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  high-porosity
The optical properties of high-porosity quartz ceramics
      
The effective absorption coefficient and the radiation diffusion coefficient are determined for high-porosity quartz ceramics of three types prepared by a production process involving the use of foaming agents.
      
The optical properties of high-porosity calcium fluoride ceramics
      
The effective absorption coefficient and the radiation diffusion coefficient are determined for high-porosity calcium fluoride ceramics.
      
The optical properties of high-porosity lithium fluoride ceramics
      
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A new technical Process of coking and gasification of powder coal by rapid heating together with its theoretical basis are illustrated. The products of pyrolysis of the powder coal by rapid heating are compared with those of ordinary slow heating. The differences of the products in quality are explained with the structure of coal and the mechanism of pyrolysis. Coke breeze Produced by rapid heating of powder coal with its microstrusture of high porosity exhibits a higher reactivity which gives much influence...

A new technical Process of coking and gasification of powder coal by rapid heating together with its theoretical basis are illustrated. The products of pyrolysis of the powder coal by rapid heating are compared with those of ordinary slow heating. The differences of the products in quality are explained with the structure of coal and the mechanism of pyrolysis. Coke breeze Produced by rapid heating of powder coal with its microstrusture of high porosity exhibits a higher reactivity which gives much influence upon the effect of gasification of the breeze. Kinds of coal suitable, for the new process and the elevation of its economical value are also treated.

本文论述了粉煤快速焦化气化新工艺的机理;高温高速热分解与慢速升温热分解产品的比较;并从煤的结构及热分解机理上解释差别的原因;高温高速热分解焦渣的活性及其微结构对气化的影响;对新工艺适用的煤种以及提高劣质煤的经济价值问题也作了探讨。

In the present work, a total of twenty-five samples of celadons of ancient Chinese dyna-sties were investigated. The chemical compositions, microstructures, sintering tempera-tures and apparent porosities of the bodies and the glazes were studied in detail. Thechemical compositions of the bodies of the Yueh kiln (越窑) of the successive dynastieshave been found to be quite similar to those of the Chekiang china stone, except that thecontents of titanium and iron oxides in the bodies are higher, which is envisaged...

In the present work, a total of twenty-five samples of celadons of ancient Chinese dyna-sties were investigated. The chemical compositions, microstructures, sintering tempera-tures and apparent porosities of the bodies and the glazes were studied in detail. Thechemical compositions of the bodies of the Yueh kiln (越窑) of the successive dynastieshave been found to be quite similar to those of the Chekiang china stone, except that thecontents of titanium and iron oxides in the bodies are higher, which is envisaged that theraw materials of the bodies could be china stone with an additional small amount of highFe_2O_3 clay(purple red clay) .The bodies of the northern celadons contained a high percentof Al_2O_3, which suggests that a clay of high Al_2O_3 content had been used in the bodies ofthe northern celadon wares. This possibly explains why the northern celadon wares are oftenof higher porosity and mostly appear as open pores as shown in the SEM photos. As to the glazes, the lime contents and the variations thereof in the northern and sou-thern celadons are about the same. Before the Five Dynasties (B.C. 907~960) the contents oflime in the glazes had been in the range of 15~20%.Since Northern Sung Dynasty, the limecontent had decreased to some 15% as upper limit while the alkalies contents increased.Thatis to say, "lime-alkaline" glaze had been used instead of "lime" glaze since the NorthernSung Dynasty.The advent of lime-alkaline glaze had been indeed a great progress.The Fe_2O_3and TiO_2 contents of the northern celadon glazes were of the same order of magnitude asthose of the southern celadon glaze.However, the tones of colour of the two varieties arequite different, which can be attributed to the difference in firing atmosphere and glazecompositions in addition to the difference in Fe_2O_3 and TiO_2 contents. Small amounts of P_2O_5 had been found in most celadon glazes in proportion to the con-tents of CaO.The authors presume that the presence of P_2O_5 in the celadon glazes mightbe due to the use of animal bone at that time.The glaze of Yun-fu ware (永福窑) was tinteddeep bean green by the mixed colourillg effects of copper and iron oxides, the CuO contenthad been found to be 1.25%. The results of measurements of physical properties indicate that the degree of densifi-cation of the Yueh kiln celadons made in the later period of Eastern Han Dynasty (B.C.25~220) is very high.Their apparent porosities are lower than 0.5% and only few closedpores were detected by scanning electron microscopy. From the physical characteristicsof the body and the glossy appearance of the glaze, we presume that high quality ce-ladon porcelain had already been made as early as the later period of the Eastern HanDynasty.

本文研究了25种历代南、北方青瓷标本。对青瓷胎、釉的化学组成、显微结构、烧成温度以及显气孔率均作了详细测定和研究。历代越窑青瓷胎的化学组成十分近似于浙江当地瓷石,但钛、铁着色氧化物含量较高。这表明青瓷胎是以瓷石和掺少量高含铁量粘土(紫金土)配制而成。从北方青瓷胎中含Al_2O_3较高推断,北方青瓷的胎主要是采用含铝量高的粘土原料制成,这也是大部分北方青瓷胎常常呈现多孔的原因。从扫描电子显微镜照片上也得到了证实,这些气孔多为开口气孔。 南、北方青瓷釉中的钙含量及其演变规律很相似。五代以前的钙含量为15~20%,北宋以后降低到15%以下,而钾、钠含量则有所增加,显示了北宋以后由石灰釉演变成石灰-碱釉的巨大进展。南北方青瓷釉中钛铁着色氧化物的含量也比较接近。然而,该两类釉的着色色调郤不十分相同,除与钛铁含量有关外,主要由于烧成气氛和基釉组成不同的缘故。 大部分青瓷釉中均含有少量P_2O_5,并随CaO含量成比例增长。作者认为这可能与当时使用了部分动物性骨质原料有关。广西永福窑釉呈深豆绿色,这是釉中所含铜、铁混合着色的效果。釉中CuO含量为1.25%。 物性测试结果表明,东汉晚期越窑青瓷的瓷化程度都很高,其显气孔率在...

本文研究了25种历代南、北方青瓷标本。对青瓷胎、釉的化学组成、显微结构、烧成温度以及显气孔率均作了详细测定和研究。历代越窑青瓷胎的化学组成十分近似于浙江当地瓷石,但钛、铁着色氧化物含量较高。这表明青瓷胎是以瓷石和掺少量高含铁量粘土(紫金土)配制而成。从北方青瓷胎中含Al_2O_3较高推断,北方青瓷的胎主要是采用含铝量高的粘土原料制成,这也是大部分北方青瓷胎常常呈现多孔的原因。从扫描电子显微镜照片上也得到了证实,这些气孔多为开口气孔。 南、北方青瓷釉中的钙含量及其演变规律很相似。五代以前的钙含量为15~20%,北宋以后降低到15%以下,而钾、钠含量则有所增加,显示了北宋以后由石灰釉演变成石灰-碱釉的巨大进展。南北方青瓷釉中钛铁着色氧化物的含量也比较接近。然而,该两类釉的着色色调郤不十分相同,除与钛铁含量有关外,主要由于烧成气氛和基釉组成不同的缘故。 大部分青瓷釉中均含有少量P_2O_5,并随CaO含量成比例增长。作者认为这可能与当时使用了部分动物性骨质原料有关。广西永福窑釉呈深豆绿色,这是釉中所含铜、铁混合着色的效果。釉中CuO含量为1.25%。 物性测试结果表明,东汉晚期越窑青瓷的瓷化程度都很高,其显气孔率在0.5%以下,扫描电子显微镜只发现一些闭口气孔,从物理?

More than five hundred button indentation tests have been carried out in the laboratory of The University of LuLE,Sweden,on samples of dry and wet granite as well as sandstone.Four Kinds of button indenters with different geometrical factors; four levels of penetration rates-0.0005m/s,0.005m/s 0.05m/s and 5m/s;applied forces of different magnitude were used during these tests.The test results reveal that,when the penetration rate is lower than 0.05m/s,hemisphenical button indenters with a diameter of 14.3mm...

More than five hundred button indentation tests have been carried out in the laboratory of The University of LuLE,Sweden,on samples of dry and wet granite as well as sandstone.Four Kinds of button indenters with different geometrical factors; four levels of penetration rates-0.0005m/s,0.005m/s 0.05m/s and 5m/s;applied forces of different magnitude were used during these tests.The test results reveal that,when the penetration rate is lower than 0.05m/s,hemisphenical button indenters with a diameter of 14.3mm and 10mm gave best results for sandstone and granite respectively. At a penetration rate of 5m/s,the 14.3mm dia hemispherical button indenter rema- ined the optimum for sandstone,whereas the truncated hemispherical button indenter gave best results for granite.In addition the tests showed that only at low penetration rates does water content have a beneficial effect on rock fragmentation:for wet san- dstone,160%-340% more debris by weight was produced compared with corresponding tests on dry sandstone,due to the sandstone's high porosity and ability to contain water.There is no proportional relationship between specific energy and the debris particle size.

近500次珠状及截头珠状硬质合金试头压入实验,已在实验室内完成。实验中使用了四种不同型号的硬质合金试头;0.0005(米/秒)、0.005(米/秒)、0.05(米/秒)和5(米/秒)四种凿入速度;10,000公斤和4,000公斤等多种作用力,以及干、湿两类花岗岩和砂岩试块。试验表明,当凿入速度低于0.05(米/秒)时,对于砂岩,φ14.3毫米的半球头珠状试头效果最好;对于花岗岩,φ10毫米的珠状试头,效果也最好。而截头珠状试头,当作用力小于单向压缩强度的11~13倍时,或侧向夹制性较大时,基本上不能破碎岩石。当加载速度提高到5(米/秒)后,在砂岩中,仍以φ14.3毫米的珠状试头效果最好;在花岗岩中,则截头珠状试头反居前列。此外,试验还表明,只是在低速加截潮湿的砂岩时,含水率才对岩石的破碎效果产生有利的影响。例如,比相应的干燥砂岩增加岩屑重量160~340%。岩屑粒度与比能之间则基本上不存在比例关系。

 
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