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opal     
相关语句
  蛋白石
     δ18OSMOW = 15. 3‰, ~ 16. 8‰ for opal (the calculated forming tem-peratures 71~81 ℃);
     蛋白石δ18OSMOW为15.3‰~16.8‰,推算形成温度为71~81℃。
短句来源
     Study on Opal Shale Exploitation and Application
     蛋白石轻质页岩开发与应用研究进展
短句来源
     Photonic Crystal of PS/TiO_2 Opal Structure: Fabrication and Characterization
     PS/TiO_2复合材料的蛋白石结构光子晶体制备及表征
短句来源
     Study on HDPE Filled with Opal
     蛋白石填充高密度聚乙烯的研究
短句来源
     The composite containing 3 % opal possessed a viscous flow activation energy below 18 kJ/mol, an impact strength 58 kJ/m 2, and a tensile strength of 49 MPa.
     复合材料的粘流活化能降低 ,添加 3 %蛋白石的复合材料粘流活化能降低 18kJ/mol; 复合材料的力学性能略有提高 ,添加 3 %蛋白石的复合材料冲击强度和拉伸强度分别为 5 8kJ/m2 和 49MPa
短句来源
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  奥普尔
     Soybean germination rate may be increased to 9.1% through soil treated with Opal liquid fertilizer.
     用奥普尔液肥处理土壤 ,可提高大豆出苗率 9.1 %。
短句来源
     The results showed that the yield of gingko leaves and the contents of quercetin,kaempferol,isorhamnetin,flavonoids,ginkgolide A, ginkgolide B,bilobalide,and ginkgolids in gingko leaves increased significantly after applying OPAL fertilizer,but the contents of ginkgolide C in leaves did not effect.
     试验结果表明 ,与普通施肥相比 ,奥普尔有机肥能够显著提高银杏叶的产量(单株鲜叶重和干叶重分别为 133 17g和 4 1 10 g) ,还能够十分明显地提高银杏叶中的槲皮素、山奈素、异鼠李素、总黄酮含量和银杏内酯A、B、白果内酯、总萜内酯的含量 ,但对叶中银杏内酯C含量的影响不大。
短句来源
     A Study on the Effect of OPAL in Winter Wheat
     奥普尔在冬小麦上的应用效果研究
短句来源
     OPAL granulated organic compound fertilizer is a “green” fertilizer approved by the Green Food Development Center of Chinas Ministry of Agriculture. This fertilizer contains 10% N,8% P 2O 5,7%K 2O,40% organic matter and combines quick acting nutrients and slow acting nutrients. When it is applied at late growth stage of rice as a jointing fertilizer,the growth of rice is well promoted,for example,the rice stem appears thickset;
     奥普尔有机复肥 (粒 )是中国农业部绿色食品发展中心认定的绿色肥料 ,含纯 N10 % ,P2 O58% ,K2 O7% ,有机质 4 0 % ,腐殖酸 12 % ,兼有速效养分和缓效养分的特点 ,在水稻后期作拔节肥使用 ,能促进水稻茎秆粗壮 ,株型紧凑 ,叶色清秀 ,生长健壮 ,提高抗性 ;
短句来源
     Effect of applying OPAL fertilizer on the yield of gingko leaves and the contents of flavonoids,ginkgolids in gingko leaves
     施用奥普尔肥对银杏叶产量及黄酮等含量的影响
短句来源
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  乳白
     Analysis of the Bubble Effect on SH Series Opal Quartz far Infrared Heating Components
     SH系列乳白石英远红外加热元件中气泡作用的分析
短句来源
     The results show that under the same condition, the thermal radiation intensity of the complex is higher than that of the opal quartz by over 10%.
     与乳白石英玻璃相比较,在相同的条件下,其热辐射强度可提高10%以上.
短句来源
     In order to improve appearance of fuse cutout,the author designed seven patterns of opal glaze composition,through comparative test on processing behaviour,whiteness of glazed articles and bending strength,the 6# composition is selected for cutout porcelain tube production, which may increase the bending strength of porcelain material up to 235MPa and above,meeting the requirement for mechanical characteristics of product.
     为改善熔断器产品的外观质量,设计了七种乳白釉配方,通过釉浆工艺性能,釉后试品白度,弯曲强度等对比试验,优选出了6#乳白釉配方作为熔断器瓷管生产用釉。 采用6#乳白釉的瓷材料弯曲强度达到235MPa以上,满足产品机械性能要求。
短句来源
     By analysing the bubble effect on SH series opal quartz far infrared heating components, the mechanism of electric energy-saving of the far infrared heating components is studied.
     本文通过对SH系列乳白石英远红外加热元件中气泡作用的分析,阐述了这种远红外加热元件的节电机理。
短句来源
     The result shows that high alumina opal glaze is fully suitable for the high alumina porcelain body,and the main factors affecting the glaze effect are material's composition,particle size and batch ratio.
     结果表明 :高铝高温乳白釉完全适合 95瓷坯体 ,而影响釉面效果的主要因素有原料的组成、粒度、配比等
短句来源
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  “opal”译为未确定词的双语例句
     The Si-SiO_2 composite and Si inverse opal have three photonic band gaps lying in band2-band3, band5-band6,band8-band9. The gap width between band5-band6 is relatively narrow.
     Si-SiO2复合体与Si反Opal垂直(111)面入射时,在较高的填充率下存在三个光学带隙,分别位于band2-band3、band5-band6、band8-Band9,其中band2-band3之间的带隙较宽,band5-band6之间的带隙较窄,band8-band9之间的带隙会产生完全带隙。
短句来源
     COMMERCIAL APPLICATION OF TOM OPAL 878L CATALYST FOR OLEFIN DECREASING
     TOM OPAL 878L型降烯烃催化剂的工业应用
短句来源
     More than half a million Z° decays have been collected and analyzed by The four LEP experiments, OPAL, ALEPH, L3 and DELPHI, during the first year operation.
     LEP运行的第一年,OPAL,ALEPH,L3和DELPHI四个实验已收集和分析了不少于五十万个Z°粒子衰变。
短句来源
     The photonic band gaps of SiO_2 opal, Si-SiO_2 composite and Si inverse opal were calculated, further the Si-SiO_2 composite and Si inverse opal were endured with filling model and core-shell model.
     首先采用MPB软件,分别计算了SiO_2 Opal的光学带隙以及两种模型(填充模型与核壳模型)下Si-SiO_2复合体与Si反Opal的光学带隙。
短句来源
     △<0.5,amorphous opal0.5<△<2, disordered monoclinic tridymite in granular form;
     0.5<△<2是无序单斜鳞石英,呈粒状;
短句来源
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  opal
Using radio-frequency magnetron sputtering, it is demonstrated that amorphous films based on a tungsten tellurite glass can be deposited on different substrates (such as opal, sapphire, fused silica, Corning glass 1737, and tellurite glass).
      
Synthesis of precious opal in a hydrothermal solution
      
The results obtained are compared with the data on the formation of supramolecular matrices of precious opal.
      
The experimental data can be used to reveal the mechanism of formation of precious opal and to design methods for preparing three-dimensional nanocomposites.
      
A series of disomic lines of spring wheat Opal developed on the basis of monosomic lines of this cultivar has been studied.
      
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In this paper, the method of the motar bar test with opal as reactive aggregate is used to investigate the alkali-aggregate reaction, Many tests have been made. In these tests the amount of opal used in the aggregate varies from 1% to 40%. The Particle sige of the opal varies from less than 0.06mm to 20mm. The alkali content of the cement varies from 0.37% to 7.5%. To the specimens, in which the alkali expansion might occur, different kinds of usually used active admixtures were added, and...

In this paper, the method of the motar bar test with opal as reactive aggregate is used to investigate the alkali-aggregate reaction, Many tests have been made. In these tests the amount of opal used in the aggregate varies from 1% to 40%. The Particle sige of the opal varies from less than 0.06mm to 20mm. The alkali content of the cement varies from 0.37% to 7.5%. To the specimens, in which the alkali expansion might occur, different kinds of usually used active admixtures were added, and the effectiveness in preventing the reaction was also studied.Having analysed the phenomena observed during these tests, the author comes to the conclusion that the main cause of alkali expansion is due to the reaction of alkali with active SiO_2 and with their product. Such a reaction Produces complex alkali silicate which will imbibe more water and, consequently, its volume is increased. The alkali expansion of the concrete is essentially due to the volume expansion of the reaction product. The necessary condifi for the alkali expansion and the cause in Preventing expansion by adding active admixture were also discussed.Further—more the author suggests that not only the active SiO_2 in the aggregates but also that of the admixtures should be considered in the estimation of alkali expansion.

作者根据长度法,对蛋白石不同含量(1~40%),不同粒徑(小于0.06~20毫米),水泥中的不同含碱量(0.37~7.5%)进行了大量的試驗。在有碱性膨脹的試件中,摻入不同的砈没旌喜牧?对碱——骨料反应的抑制效果亦作了一些試驗。本文对試驗中所观察出的一些現象进行了分析,認为碱性膨脹的主要原因是由于碱与活性SiO_2及其产物作用,生成了吸水較多,体积較大的絡合物.混凝土碱性膨脹主要原因是由于生成物体积膨脹而引起的,并对碱——骨料膨脹反应的必要条件与摻入活性混合材料能抑制碱性膨脹的主要原因进行了分析。此外,并提出不但要考虑粗細骨料中的活性SiO_2,而且要考虑混合材料中的活性SiO_2。

The absorption spectra of 10 species of marine algae,including 4 species of green algae,3 species of brown algae and 3 species of red algae,collected from Tsingtao were measured by Shibata's opal glass method.The characteristics of the absorption spec- tra of these three groups of algae,the absorption maxima and bands of chlorophylls, phycobilins and fucoxanthin in vivo were discussed on the basis of the absorption spectra of these marine algae and the difference spectra between the brown or red algae...

The absorption spectra of 10 species of marine algae,including 4 species of green algae,3 species of brown algae and 3 species of red algae,collected from Tsingtao were measured by Shibata's opal glass method.The characteristics of the absorption spec- tra of these three groups of algae,the absorption maxima and bands of chlorophylls, phycobilins and fucoxanthin in vivo were discussed on the basis of the absorption spectra of these marine algae and the difference spectra between the brown or red algae and the green algae.The results were presented in Table 1. On the basis of the results from the comparative studies on the differences between the absorption spectra of brown algae and those of green algae and on the difference spectra of green algae at 485(or 480)mμ were attributed to blue band absorption maximum of chlorophyll b,thus supporting the view point of Barer(1955)and French(1960).In the difference spectra between brown and green algae,the nega- tive peak at 655 mμ and the peak at 525 mμ show repectively the positions of the absorption maximum of the red band of chlorophyll b in green algae and of fucoxan- thin in brown algae. On the basis of the absorption spectra of red algae and the characteristics of the red band absorption peak and the negetive peak in the difference spectra between red and green algae,the red band absorption peak of the chlorophyll d of red algae in vivo appeared to be located at a longer wave position than that of the red band absorption peak of chlorophyll a. Comparative studies of the absorption spectra of three species belonging to two different classes of red algae,namely,Porphyra yezoensis of the more primitive class Bangiophyceae or Protoflorideae,and Halymenia sinensis and Phycodrys radicosa of the more advanced Floridophyceae,showed marked differences in these two groups of red algae.Members of the Floridophyceae including the Halymenia,the Phycodrys and four other species,all showed three phycoerythrin absorption peaks,respectively at 500,540(or 535)and 560 mμ,difforening from each other only slightly in heights, as previously reported for other Floridophyceae by Haxo and Blinks(1950)and Saen- ger et al(1969).Whereas in Porphyra of the Bangiophyceae,there were only two absorption peaks,respectively at 500 and 565mμ,differening significantly from each other in height.As we have previously reported,marked differences in the amount and composition of their phycobilin contents were shown between Porphyra yezoensis from regions with rich mineral nutrients and those from regions with meagre mineral nutrients,as well as between the different portion of the same thallus.It is therefore suggested that presence of such variations and differences of the phycobilin systems in the red algae may be of significance in the study of the evolution of this group of algae and in the study of ecological adaptation.

1.用乳白玻璃法测定了我国黄海常见的属于绿藻门、褐藻门和红藻门的十种海藻的吸收光谱。讨论了这三门海藻的吸收光谱的特点。通过对吸收光谱及红藻、褐藻相对于绿藻的差异光谱的分析,讨论了各种色素在活体中的吸收峰和吸收带的位置。2.根据褐藻与绿藻的吸收光谱的差异及差异光谱的比较分析,认为绿藻吸收光谱中位于485(或480)毫微米的吸收峰是叶绿素 b 的蓝光吸收峰。叶绿素 b 的红光吸收峰位于655毫微米附近。岩藻黄素的吸收峰位于525毫微米附近。根据红藻吸收光谱及其同绿藻的差异光谱中的红光吸收峰和负峰的特点,初步认为红藻中的叶绿素 d 的红光吸收峰比叶绿素 a 的红光吸收峰位于较长波长处。3.对几种红藻的吸收光谱进行了比较。观察到原始红藻纲的条斑紫菜(Porphyra yezoen-sis)的藻胆素与真红藻纲的藻类有显著的差异。这种差异及条斑紫菜的藻胆素的含量和组成上的易变性值得进一步研究。

The action on opal by solutions of different pH values has been investigated.Resultsshow that the amount of SiO_2 dissolved increases rapidly when the solutions have pH valuesgreater than 12~12.5.Comparative studies of the alkali-silica reaction in portland, alumi-nous, supersulphated and red mud-sulphated cements were then carried out.The alkali-silica reaction is most outstanding in portland cement though the alkali content is aboutthe same as in the other cements.This might be explained by the fact...

The action on opal by solutions of different pH values has been investigated.Resultsshow that the amount of SiO_2 dissolved increases rapidly when the solutions have pH valuesgreater than 12~12.5.Comparative studies of the alkali-silica reaction in portland, alumi-nous, supersulphated and red mud-sulphated cements were then carried out.The alkali-silica reaction is most outstanding in portland cement though the alkali content is aboutthe same as in the other cements.This might be explained by the fact that the OH- ionconcentration of pore solution in portland cement paste is rather high, as its pH value isalways greater than 12.5 even though the alkali content is low while such is not the casewith other cements. The mechanism of inhibiting alkali-silica reaction by the pozzolanicmaterials may be reasonably explained by taking the effect of Ca(OH)_2 into considerationand has been verified experimentally. Suggestion is made that the alkali-silica reactioncaused by alkali from sources other than cement can be prevented by using cements contain-ing little or no Ca(OH)_2.

本文首先研究了不同的pH溶液对蛋白石的侵蚀作用,发现当pH值大于12~12.5时,SiO_2的溶出量急剧增加。其次对比研究了硅酸盐水泥、矾土水泥、石膏矿渣水泥和赤泥硫酸盐水泥中的碱-硅酸反应。发现当碱含量相同时,硅酸盐水泥中碱-硅酸反应最剧烈。原因是其水泥石液相中OH~-浓度较高,即使碱含量很低,由于有Ca(OH)_2存在,液相pH值也在12.5以上。其他水泥则不同。从Ca(OH)_2的作用出发,阐明了混合材对碱-硅酸反应的抑制机理,并通过试验予以证实。文中还提出采用不含或少含Ca(OH)_2的水泥以避免其他来源的碱引起的碱-硅酸反应。

 
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