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coatings
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  涂层
     Study on the Diffusion and Reaction at the Interface of Thermal Barrier Coatings on Superalloy Substrate
     镍基合金基体热障涂层界面扩散和反应的研究
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     Friction Wear and Liguid Impact Resistance Research of Nano-Composite Carbon Nitride Coatings
     氮化碳纳米复合涂层摩擦磨损和耐水蚀研究
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     The Research on the Precision Grinding Mechanisms and Simulation Prediction Techniques for Nanostructured Ceramic Coatings
     纳米结构陶瓷涂层精密磨削机理及仿真预报技术的研究
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     Study of Polyaniline/Montmorillonite Composites Anticorrosion Coatings
     聚苯胺/蒙脱土复合防腐蚀涂层的制备及性能研究
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     Study on Acrylic Based Polyurethane/Nanosilica Composite Coatings
     丙烯酸酯聚氨酯/纳米二氧化硅复合涂层的研究
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  涂料
     Study on Preparation and Properties of Two-Component Waterborne Polyurethane Coatings
     水性双组分聚氨酯涂料的制备及性能研究
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     Metal-Organic Coordination Polymers. Synthesis, Crystal Structures and Applications to Fuctional Coatings
     金属有机配位聚合物的合成、结构表征及在功能涂料中的应用
短句来源
     Modification and Dispersion of Nanometer Calcium Carbonate and Preparation of Its Composite Coatings
     纳米CaCO_3的改性、分散及其复合涂料的制备
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     Study on Phase Inversion Emulsification of Epoxy Resin and Waterborne Epoxy Resin Anticorrosive Coatings
     环氧树脂的相反转乳化与水性环氧树脂防腐涂料的研究
短句来源
     Study on Preparation of Architectural Latex Coatings and Its Dispersion, Rheology Mechanism
     建筑乳胶涂料的研制及其分散、流变机理的研究
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  镀层
     Electro-deposition Processes, Microstructures and Properties of Ni-P & (Ni-P)-SiC Coatings
     Ni-P、(Ni-P)-SiC镀层的电沉积及其组织性能
短句来源
     Study on Process, Mechanism and Application of Electrodeposited Zn-Fe-SiO_2 Composite Coatings
     电沉积Zn-Fe-SiO_2复合镀层工艺、机理及应用研究
短句来源
     Study on Characterization and Mechanisms of Ni-ZrO_2 Nanocomposite Coatings by Pulse Electroplating Technology
     脉冲电沉积Ni-ZrO_2纳米复合镀层的制备、表征及机理研究
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     Study on the Fabrication and EDM Performance of the Electrodeposited Cu-ZrB_2 Composite Coatings Applied to EDM
     电加工用Cu-ZrB_2复合镀层的制备及其电加工性能研究
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     A Study on the Mechanism of Electrodeposition of Ni-SiC Composite Coatings
     Ni-SiC复合镀层电沉积机理的研究
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  “coatings”译为未确定词的双语例句
     Studies on the Growth Process and Corrosion Behavior of Micro-arc Oxidation Coatings on Magnesium Alloy
     镁合金微弧氧化膜的形成过程及腐蚀行为研究
短句来源
     A Study on Al_2O_3/TiN Duplex Coatings to Improve the Tribological Properties of Aluminum Alloy under Heavy Load-bearing Conditions
     用Al_2O_3/Tin双联沉积工艺改善铝合金在重载条件下的摩擦性能
短句来源
     Study on Thin Films Technology for Mid-Far-Infrared Laser Coatings
     中远红外激光薄膜技术研究
短句来源
     Research of Semiconductor Laser Optical Coatings Technology
     半导体激光器光学膜技术研究
短句来源
     Investigation on Film Formation Mechanism, Microstructure and Performances of Complex Zinc Phosphate Coatings of Magnesium Alloy
     镁合金锌系复合磷化膜成膜机理、微观结构及性能的研究
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  coatings
Thin films and multi-layered coatings comprised of different classes of materials are often used for various functional devices.
      
In addition, the residual stress distributions in the functionally and compositionally graded coatings were also analyzed.
      
Carbon fibres (CF) were modified with different oligomeric silsesquioxane (SSO) coatings to improve the interfacial property of carbon fibres/polyarylacetylene (CF/PAA).
      
The results show that the ILSS increases effectively and the effects on interfacial characterizations are distinguished from each other in accordance with the CF surface modified with different SSO coatings owing to the various structures.
      
AFM observations lead to the conclusion that an interfacial transition layer with different morphology and stiffness appears in CF/PAA composites after being treated by the SSO coatings of different structures.
      
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Coating bamboo with a solution of celluloid in acetone does not exert a water proof effect greatly. The addition of rosin to the mentioned solution reduces appreciably the water-absorption property of bamboo. After brushing bamboo with slushing compound and melted petroleum asphalt, the percentages of water-absorption of bamboo are 6.1% and 3.8%, respectively, after immersion in watertfor seven days. If bamboo is coated with an alcoholic solution of rosin, the water-proof effect is not great and is not...

Coating bamboo with a solution of celluloid in acetone does not exert a water proof effect greatly. The addition of rosin to the mentioned solution reduces appreciably the water-absorption property of bamboo. After brushing bamboo with slushing compound and melted petroleum asphalt, the percentages of water-absorption of bamboo are 6.1% and 3.8%, respectively, after immersion in watertfor seven days. If bamboo is coated with an alcoholic solution of rosin, the water-proof effect is not great and is not proportional to the concentration of rosin. A double alternate coat of an alcoholic solution of rosin (3:10) or a solution of rosin and celluloid in alcohol and acetone, followed by a coat of melted petroleum asphalt cuts down the percentage of water-absorption of bamboo to 1.9% or 1.1% in seven days. In order to obtain a satisfcatory result, we must investigate the right way of brushing.

用赛璐珞的丙酮溶液涂布竹材,其防水效力增加不多。如将松香加入上述溶液,能使竹材的吸水性显著地减小。用沥青液及熔化的石油沥青分别涂刷竹材,浸水七天后竹材的吸水量各为6.1%及3.8%,若用松香的酒精溶液涂布竹材,其防水效力不大,并且和松香的浓度不成正比的关系。先涂布松香或松香与赛璐珞的酒精与丙酮溶液,再涂布熔化的石油沥青,七天后的竹材吸水百分率减至1.9%或1.1%。要获得满意的效果,还要请求适当的涂刷方法。

Clay particles of less than 1μ were separated from 18 selected soil samples, representing important types of red and yellow soils of southern China.Com- position of clay minerals was identified by X-ray defraction,differential ther- mal analysis,base exchange capacity and chemical constituents.Zonality of the weathering stage of the soil,as shown in Fig.I,is explained briefly as follows. Region(Ⅰ)Lateritic soils Representative clay minerals:Kaolinite-gibbsite-hematite.Soils of this type mainly distribute on...

Clay particles of less than 1μ were separated from 18 selected soil samples, representing important types of red and yellow soils of southern China.Com- position of clay minerals was identified by X-ray defraction,differential ther- mal analysis,base exchange capacity and chemical constituents.Zonality of the weathering stage of the soil,as shown in Fig.I,is explained briefly as follows. Region(Ⅰ)Lateritic soils Representative clay minerals:Kaolinite-gibbsite-hematite.Soils of this type mainly distribute on the rolling hills of northern Hainan island,Laichou peninsula and south-central Yunnan.Formation of lateritic soil seems confined to the highly weathered parent materials of basalt origin,which were formed possibly at tertial geological age.Present direction of soil development remains much controversy. The whole soil contains around 20% Fe_2O_3 as hematite.Clay portions (<1μ)of the soil possess base exchange capacity 5—5.5 m.e.per 100 grams and SiO_2/Al_2O_3 ratio 1.4—1.5. TiO_2 in form of ilmenite presents both in silt and clay fractions up to 4—6%. Region(Ⅱ)Red soils of tropic zone Representative clay minerals:Kaolinite-halloysite.Soils of this type form a narrow belt in the tropic zone,extending from southern Fukien to Kwangsi. They are derived from various parent materials,including granite,metamor- phic rocks,sand stones,shales and marine deposits.Clay minerals of kaolinite group are the characteristic weathering product of this soil type with minor portions of gibbsite,hematite,quartz,and illite. Clay fractions of this soft type possess base exchange capacity 10—15 m.e. per 100 grams and SiO_3/Al_2O_3 ratio 1.7—2.0. Region(Ⅲ)Red soils of subtropic zone Representative clay minerals:Kaolinite-quartz-Montmorillonite.Soils of this type distribute in the subtropic zone of south-cntral China,occurring on the low hills and terraces below 500—600 meters altitude.They are derived from granite,phyllite,sandstones,shales and red clay.The much higher ex- change capacity of clay fraction(20—25 m.e.per 100 grams),higher SiO_2/Al_O_3 ratio(2.0—2.3),together with the identified clay minerals characterize the less advanced weathering stage in comparison to the soils of tropic zone. In the silt fraction of this soil type much of orthoclass and mica remain undecomposed. Region(Ⅳ)Yellow soils on the mountainous region of southern China Representative clay minerals.Kaolinite-montmorillonite,Illitequartz and montmorillonite-quartz. On the higher mountains above 600—700 meters altitude of southern China, including both tropic and subtropic zones,yellow soils and partially red soils occur.Clay minerals of this soil type characterize a moderately weathering stage.Montmorillonite,illite,kaolinite and quartz are the major constituents, but variations of the composition of these minerals are determined by the primary minerals of their parent rocks. Clay fractions of this soil type possess base exchange capacity 24—34 m.e. per 100 grams,with higher content of active alumina up to 2.5—5.5 m.e.per 100 grams. Soils occurring on the depression area of red earth region usually appear yellowish.The diversity of soil color leads much controversies in soil classifi- cation.Present investigation indicates that the change from reddish coloration to yellowish in the depression area is induced by the hydration of hematite. Once a small portion of the anhydrous ferric oxide has been hydrated into geothite or limonite due to local variation of the moisture condition,while the main constituents of the clay minerals remain unchanged,the soil gives a dis- tinctive yellowish coating.The change is very sensitive.

1.用 X-光分析,差热分析,化学分析和代换量测定方法,综合鉴定了华南砖红壤性红壤,热带红壤,亚热带红壤和山地黄壤的粘土矿物组成,并绘制了华南土壤主要粘土矿物组成分区图。我们将华南土壤分为四个区,即砖红壤性红壤区,主要粘土矿物为高岭石,三水铝石,赤铁矿;热带红壤区,主要粘土矿物为高岭石,埃洛石;亚热带红壤区以高岭石,石英,濛脱石为主;山地黄壤区,以伊利石,濛脱石,石英,高岭石为主,其组合因母岩的不同而转移。2.我们对微域地形,如坡上、坡下;南坡、北坡和局部气候的影响,使土壤颜色发生了显著的变化的红色,黄色土壤进行了研究。结果证明,二者的化学性质、粘土矿物组成完全相同。在低洼地区和阳坡等湿润条件下赤铁矿部分水化成为针铁矿,因之使土壤颜色变黄。但这种黄色土壤与风化程度较浅的山地黄壤是有很大区别的。3.我们把由浅海沉积物母岩发育,过去称为砖红壤性红黄色土的土壤,划归红壤。因为我们研究结果证明,这类土壤的风化程度并不比红壤深些,它们的粘士矿物组成和化学性质与热带地区的红壤也很一致。砖红壤性土壤,仅仅局限于一定的母岩。4.在紫红色砂岩发育的山地黄壤中发现了一水软铝石的存在,对它的生成、转变尚待进一步研究。

The soybean aphid, Aphis glycines Matsumura is widely distributed in the soybean growingregions of China, its damage has done severely in Kirin, Liaoning, Heilungkiang, andInner Mongolia. The host plant of this aphid is quite limited, besides the cultivated soybean, sofar only the wild soybean, Glycine Benth forma lanceolate Makino and Rhamnus davuricusPall. were found in Northeast China. Three periods of the damage on soybean can be receg-nized: 1) From seedling stage to blooming stage of soybean, the aphid...

The soybean aphid, Aphis glycines Matsumura is widely distributed in the soybean growingregions of China, its damage has done severely in Kirin, Liaoning, Heilungkiang, andInner Mongolia. The host plant of this aphid is quite limited, besides the cultivated soybean, sofar only the wild soybean, Glycine Benth forma lanceolate Makino and Rhamnus davuricusPall. were found in Northeast China. Three periods of the damage on soybean can be receg-nized: 1) From seedling stage to blooming stage of soybean, the aphid population reaches its highestpeak. Its colonies concentrate on tender leaves and branches.2) In late July, the top growing pointof soybean plant stops to grow, the aphid colonies alter their positions from the top to the middleor the lower part of the plant and feed on the underside of soybean leaves. At that time, minute formof aphids appears and its population usually turns down quickly. 3) From late Augustto early September, the aphid colony begins to multiply rapidly again. Afterwards, it migrates backto the overwintering host, Rhamnus davuricus. By mating of the sexuales, eggs are laid to passwinter. A total of 15 generations developed on soybean and all together 18 generations in a year. Some aspects in relation to the fluctuations of aphid population are mentioned: 1)The norm ofoverwintering eggs and also the population size in the soybean seedling stage are directly related to thefuture size of the aphid colony. 2) During the period from late June to early July, the optimalrange of temperature (22--25℃) and humidity (below 78%) are found combinatively favoringthe aphid development. 3) After late July, the growth of soybean becomes depressing, the nutritioussupply for the aphid becomes correspondingly poor, the population goes to be greatly decreased. The results of laboratory and field tests reveated that 0.5% γ 666 dust, 6% γ wettable 666(1:300--400), E605 (1:15000), tobacco leaf solution (1:100) and seed coating with 20% γ 666dust are very effective to control the soybean aphids.

大豆蚜在我国主要大豆产地都有分布,以吉、辽、黑和内蒙自治区的一部分为害最重,为猖獗发生区。大豆蚜的寄主植物除大豆外,还有野生大豆和鼠李,由调查和接种试验的结果,肯定了大量地分布在东北三省的鼠李为越冬寄主。 大豆蚜的全年发生周期和为害特点在大豆上共分三个阶段:1)从侵害豆苗起到7月中旬大豆盛花期止,是大豆蚜的盛发时期,占有总蚜量的50—70%,群聚于豆株上部幼嫩的枝叶上,这时期的为害,对大豆的生长威胁最大;2)到7月下旬,由于大豆生长点停止生长,大豆蚜即从群聚于植株上部发生转移到分散在中、下部的叶片背面,并同时出现小型蚜,生长迟缓,为田间大豆蚜为害的消退阶段;3)8月下旬结荚后期到9月上旬黄熟期,重新开始了大豆蚜的后期繁殖阶段,随即在秋末季迁回鼠李,经雌雄交配产卵越冬,秋季雄性蚜和雌性产卵蚜分别发生在不同的寄主上,雌性发生在鼠李上,雄性发生在大豆上。全年在大豆上共繁殖15代。 根据大豆蚜的生活规律和几年来田间消长规律并结合几年的气象资料综合分析的结果,初步得出大豆蚜的发生消长规律和其影响因子:1)上年越冬量及早期田间蚜量大,因而造成了苗期大发生;2)6月下旬至7月上旬的旬平均温度在22—25℃,相对湿度在78%...

大豆蚜在我国主要大豆产地都有分布,以吉、辽、黑和内蒙自治区的一部分为害最重,为猖獗发生区。大豆蚜的寄主植物除大豆外,还有野生大豆和鼠李,由调查和接种试验的结果,肯定了大量地分布在东北三省的鼠李为越冬寄主。 大豆蚜的全年发生周期和为害特点在大豆上共分三个阶段:1)从侵害豆苗起到7月中旬大豆盛花期止,是大豆蚜的盛发时期,占有总蚜量的50—70%,群聚于豆株上部幼嫩的枝叶上,这时期的为害,对大豆的生长威胁最大;2)到7月下旬,由于大豆生长点停止生长,大豆蚜即从群聚于植株上部发生转移到分散在中、下部的叶片背面,并同时出现小型蚜,生长迟缓,为田间大豆蚜为害的消退阶段;3)8月下旬结荚后期到9月上旬黄熟期,重新开始了大豆蚜的后期繁殖阶段,随即在秋末季迁回鼠李,经雌雄交配产卵越冬,秋季雄性蚜和雌性产卵蚜分别发生在不同的寄主上,雌性发生在鼠李上,雄性发生在大豆上。全年在大豆上共繁殖15代。 根据大豆蚜的生活规律和几年来田间消长规律并结合几年的气象资料综合分析的结果,初步得出大豆蚜的发生消长规律和其影响因子:1)上年越冬量及早期田间蚜量大,因而造成了苗期大发生;2)6月下旬至7月上旬的旬平均温度在22—25℃,相对湿度在78%以下时,则极有利于田间大豆蚜的发育和繁殖,即使早期蚜量少,由?

 
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