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black
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  黑色
    More on the Black Chemical Oxidation of Stainless Steel
    再谈“不锈钢的黑色化学氧化”
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    APPLICATION OF BLACK PLATING IN AUTO INDUSTRY
    黑色镀层在汽车工业中的应用
短句来源
    Black Ni-Mo Alloy Electroplating
    黑色镍钼合金电镀
短句来源
    Study on Black Ni-Sn Alloy Coating of Solar Selective Absorptance
    选择性吸收黑色镍-锡合金镀层的研究
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    Black Ni-Sn Alloy Plating Process
    枪黑色镍锡合金电镀工艺
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  黑颜料
    Study on stability stained with the Co-Cr-Mn-Fe system black stain at high temperature
    Co-Cr-Mn-Fe系黑颜料的高温呈色稳定性研究
短句来源
    the method combined with wet and dry processed can improve dramatically the quality of product of sediment (magnetic flaw detecting powder and iron black pigment) with low Fe 2+ adding concentration (sludge∶FeSO 4=1∶2).
    湿法和干法相结合的处理工艺可以在低Fe2+投入(污泥∶FeSO4=1∶2)的情况下使处理后所得到的综合利用产品(磁性探伤粉、铁黑颜料)的性能得到较大改善.
短句来源
    We have qualitatively analyzed the stability stained with Co-2O-3-Cr-2O-3-Fe-2O-3-MnO-2 system high temperature black stain in the base glazes, made use of crystal field tyeory. The primary influence factors and the best technological conditions of the sta-bility stained with this system stain are determined, and this is very important guiding action on the manufacture and correct use of this kind of stain.
    利用晶体场理论,对Co_2O_3-Cr_2O_3-MnO_2-Fe_2O_3系高温黑颜料在基础釉中的呈色稳定性进行了定性分析,确定了该系颜料呈色稳定性的主要影响因素及最佳工艺条件,这对该系颜料的生产和正确使用有很重要的理论指导作用。
短句来源
  “black”译为未确定词的双语例句
    Preparative Method of White Carbon Black
    白炭黑的制备方法
短句来源
    Application and development of refractories in carbon black reaction furnace
    耐火材料在炭黑反应炉上的应用与发展
短句来源
    β’-SiAlON material was prepared by using 80% clay (Guangxi Kaolin or Jilin ball clay) and 20% carbon black as starting materials,dolomite,CaO and TiO2 as sintering aids,with carbothermal reduction and nitridation method.
    采用质量分数80%的粘土(广西高岭土或吉林球粘土)和20%的炭黑为原料,以白云石、CaO、TiO2为烧结助剂,经碳热还原氮化反应制备了β’-SiAlON材料。
短句来源
    the X-ray diffraction(XRD) and infrared spectra(IR) analysis showed white cabon black product were amorphous structure.
    经X射线衍射(XRD)、红外光谱(IR)分析表明制备的白炭黑为非晶态结构。
短句来源
    The Process Improvement in Nitrogen Manufacturing System of Acetylene Carbon Black
    乙炔炭黑制氮系统工艺改造
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  black
Effects of garlic and black grape extracts on the activity of adenosine deaminase from cancerous and noncancerous human urinary
      
A black-scholes formula for option pricing with dividends
      
We obtain a Black-Scholes formula for the arbitrage-free pricing of European Call options with constant coefficients when the underlying stock generates dividends.
      
The impact of different interference substrate materials for improving the color travel effect was studied, and the influence of white and black background on the hue and the color travel effect were studied.
      
Nutrient Dynamics of Fine Roots in the Mixed Plantation of Poplar and Black Locust
      
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The authors have studied the pottery of the four layers of cultural deposits excavatedat Homudu, Yuyao County, Zhejiang Province. According to the results obtained fromthe research of chemical compositions, micro-structures, firing temperatures and physicalproperties of these potteries, it reveals that these excavated potteries dated as far backas seven thousand years ago in the fourth layer possess the distinguished characteristicswhich have never been found before. 1. The mixed carbon black wares excavated...

The authors have studied the pottery of the four layers of cultural deposits excavatedat Homudu, Yuyao County, Zhejiang Province. According to the results obtained fromthe research of chemical compositions, micro-structures, firing temperatures and physicalproperties of these potteries, it reveals that these excavated potteries dated as far backas seven thousand years ago in the fourth layer possess the distinguished characteristicswhich have never been found before. 1. The mixed carbon black wares excavated in large quantities were made of a kind ofclay containing sericite intentionally mixed up with carbonized rice husks, stalks andleaves which were burnt beforehand. 2. The Fe_2O_3 contents of the potteries excavated from the fourth layer, irrespective ofmixed carbon black wares or sandy black wares are very low (1.5~1.8%). This has neverbeen found at any other excavated neolithic sites in China and even also at other layers atHomudu. Possibly it relates to the higher purity of raw materials being used. 3. Such potteries (particularly those from the fourth layer) mark a high ignition lossup to 13.42% due to carbon and organic materials contained therein. From the variation of composition and the development of technology of the potteriesexcavated at Homudu, we can get a clear view of the relationship among the four layersof cultural deposits super-imposed one upon the other. This may offer some worthy refe-rences for the archaeologists.

研究了浙江余姚河姆渡遗址第一期发掘出土的四个文化层的陶器。根据化学成分、显微结构、烧成温度及物理性能指出:这些早在距今7000年第四文化层的陶器具有前所未见的鲜明特征: 1.出土的大量夹炭黑陶是在绢云母质粘土中有意识掺和炭化的稻壳和植物茎叶制成的。这些稻壳和植物茎叶事先经过燃烧炭化,然后放到粘土中加水拌和后使用。 2.第四文化层出土的陶器,无论是夹炭黑陶还是夹砂黑陶其含铁量都非常低(1.5~1.8%)。这是其他地区出土的新石器时期的各种陶器所未见(白陶除外)的,也是河姆渡其它文化层的各种陶器所没有的。这可能和它所用的原料是较纯的绢云母质粘土有关。 3.这些陶器(特别是第四文化层)都有很大的烧失量,最大者可达 13.42%。这是由于含有炭和有机质的结果。 文章还指出:从河姆渡各层陶器的成分变化和工艺发展也可以看出各文化层的迭压关系,这为考古工作者提供一些值得注意的参考数据。

Study has been made on the chemical compositions and microstructures of the coatingsand glazes of more than 60 pieces of the painted pottery, black pottery with clay glaze,proto-porcelain and green-ware in Zhejiang Province starting from the Neolithic perioddown to the present day, thereby the formation and development of the green glaze ofZhejiang Province is traced. The development of the green glaze in Zhejiang Province can be envisaged to havegone through the following four stages: 1.Pre-Shang period:...

Study has been made on the chemical compositions and microstructures of the coatingsand glazes of more than 60 pieces of the painted pottery, black pottery with clay glaze,proto-porcelain and green-ware in Zhejiang Province starting from the Neolithic perioddown to the present day, thereby the formation and development of the green glaze ofZhejiang Province is traced. The development of the green glaze in Zhejiang Province can be envisaged to havegone through the following four stages: 1.Pre-Shang period: Nurturing stage (about 5000 B.C.~1600 B.C.), 2.Shang and Zhou period: Forming stage (1600 B.C.~220 B.C.), 3.Han, Jin, Sui, Tang and Five Dynasties period: Maturing stage (206 B.C.~A.D.960), 4. Song till present day period: Enhancing stage (A.D. 960-present day). The chemical compositions and microstructures of the coatings and glazes of the 4 stageshave distinctive features, particularly, in that as the main flux of the glaze RO (CaO+MgO) contents show distinct and regular changes. In the Pre-Shang period, the RO contentwas rather low generally less than 5%;in the Shang and Zhou period it increased to notmore than 15%; in the Han till Five Dynasties period, it increased to 18%~20%, whilein the Song till present day period, it again dropped to below 15%, usually around10%. The R_2O (K_2O+Na_2O) and Fe_2O_3 contents showed relevant changes with the increaseor decrease of RO content, but the variation was comparatively small, generally less than6%. In the said historical period, the change of the RO content in the glazes appeared tohave been: low-high-low. The porcelain glaze in Zhejiang area, thus, developed to befirst as a unique and traditional lime glaze, and later as unparalleled form of lime-alka-line glaze. From the research works done on several tens of the painted pottery, proto-porce-lain, green ware and white porcelain of the various historical periods in the north andsouth areas of China,the author arrived at the conclusion, that with the exception of theTang white porcelain glaze and a few others, the development of the green glaze inChina as a whole follows the same pattern as that of Zhejiang Province.

通过浙江地区自新石器时期一直到近代的60多个彩陶、泥釉黑陶、原始瓷和青瓷的涂层、彩及釉的化学成分和显微结构的研究,找出了浙江青瓷釉的形成和发展的规律。 随着时代的进展,我国浙江青瓷釉的发展过程可以从4个历史时期划分为4个阶段:(1)商前时期的釉的孕育阶段(公元前5000年~公元前1600年);(2)商、周时期的釉的形成阶段(公元前1600年~公元前220年);(3)汉、晋、隋、唐、五代时期的釉的成熟阶段(公元前206年~公元960年)和(4)宋到现代的釉的提高阶段(公元960年至今)。这4个阶段在釉的化学组成上和显微结构上都有明显的差别,特别是作为釉的主要熔剂的RO(CaO+MgO)的含量有着明显的有规律的变化。如商前时期RO的含量一般不超过5%。商、周时期虽有所增加,但一般也不超过15%。汉至五代则增加到不低于18%,一般在20%上下,宋以后,则又降低到不超过15%。一般在10%左右。在RO发生变化的同时,R_2O(K_2O+Na_2O)和Fe_2O_3也发生相应的变化,但变化范围是比较小的,一般只在6%以下。在整个历史阶段,釉中RO的含量形成先低、后高、再低的变化规律,使我国的瓷釉先形成独具风格的传统的石...

通过浙江地区自新石器时期一直到近代的60多个彩陶、泥釉黑陶、原始瓷和青瓷的涂层、彩及釉的化学成分和显微结构的研究,找出了浙江青瓷釉的形成和发展的规律。 随着时代的进展,我国浙江青瓷釉的发展过程可以从4个历史时期划分为4个阶段:(1)商前时期的釉的孕育阶段(公元前5000年~公元前1600年);(2)商、周时期的釉的形成阶段(公元前1600年~公元前220年);(3)汉、晋、隋、唐、五代时期的釉的成熟阶段(公元前206年~公元960年)和(4)宋到现代的釉的提高阶段(公元960年至今)。这4个阶段在釉的化学组成上和显微结构上都有明显的差别,特别是作为釉的主要熔剂的RO(CaO+MgO)的含量有着明显的有规律的变化。如商前时期RO的含量一般不超过5%。商、周时期虽有所增加,但一般也不超过15%。汉至五代则增加到不低于18%,一般在20%上下,宋以后,则又降低到不超过15%。一般在10%左右。在RO发生变化的同时,R_2O(K_2O+Na_2O)和Fe_2O_3也发生相应的变化,但变化范围是比较小的,一般只在6%以下。在整个历史阶段,釉中RO的含量形成先低、后高、再低的变化规律,使我国的瓷釉先形成独具风格的传统的石灰釉,然后再发展成为独树一帜的石灰-碱釉。 结合数10个我国南北各地历代的青瓷釉和白瓷釉的化学成分的研究。发现除少数例外?

Fujian black clay is a variety of kaolinised fireclay which is widely used in many industrial fields. In this paper, the chemical-mineral compositions and its main technological characteristics have been described. According to the experience of kiln furniture-making, the paper has offerd a method of the quality control in use.

福建黑粘土是一种工业用途极广的高岭石类耐火材料。本文具体阐述了该粘土的化学一矿物组成及主要工艺性能,并以窑具制作经验提出了工业应用中的质量控制方法。

 
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