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coating
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  涂层(
     The influence of ion beam bombardment-diffused coating (BDC) on wear resistance of high-speed steel (W18Cr4V)
     离子束轰击涂层(BDC)对高速钢(W18Cr4V)耐磨性的影响
短句来源
     Laser clad Ni -based alloy coating with 20vol% B4CP(NiB4C) on 16Mn steel substrate has been obtained by 5kW CO2 continuous wave laser. Microstructure and phase constitutes of the NiB4C coating have been studied, and micro - hardness and the performance of sliding wear of the NiB4C coating have been discussed in contrast to laser clad Ni - based alloy coating (Ni60).
     利用5kW连续波CO2激光器对16Mn钢基材表面预置的含20 vol%B4CP的Ni基合金复合粉末进行激光熔覆得到Ni基B4C合金涂层(NiB4c),研究了NiB4c涂层的组织形貌与相组成,并用单纯的镍基合金涂层(Ni60)进行了显微硬度及滑动磨损性能的对比试验。
短句来源
     Laser cladding Co-based alloy coating(Co50) and Co-based alloy composite coating(Co+Cr_3C_2) with different Cr_3C_2 addition(20%,40%,60%,mass fraction) on low carbon steel substrates has been obtained. Microstructure and performance of the coatings have been comparatively discussed in the same test conditions.
     在低碳钢表面激光熔覆了钴基合金涂层(Co60)以及添加不同含量Cr3C2(20%,40%,60%,质量分数)的Co+Cr3C2复合涂层,比较研究了几种涂层的组织与性能。
短句来源
     Change mechanism of wear debris has been researched in shding wear system composed of iron-base alloy coating (0.65%C-24% Cr-3.5%Si-3.5%B-3.0%Mo-6%Fe-Ni bal.) with 65Mn steel. During wear process, not only chemical and mechanical change such as oxidating and breaking etc.
     :在真空熔结镍基合金涂层(成分是0.65%C-24%Cr-3.5%Si-3.5%B-3.0%Mo-6%Fe-Ni余量)与65Mn钢组成的滑动磨损系统中,研究了磨屑的演变机理。
短句来源
     Laser cladding Co-based alloy coating (Co60) and Co-based alloy composite coating with 25(mass)% Cr_3C_2 particles (Cr_3C_2/Co) on low carbon steel substrate were obtained by 5-kW CO_2 continuous wave laser. Effects of Cr_3C_2 particles on microstructure, micro hardness and corrosion-wear resistance of Co-based alloy coating were discussed.
     采用 5 k W CO2 连续激光在低碳钢表面激光熔覆了钴基合金涂层 (Co6 0 )及添加 2 5 % Cr3C2 (质量分数 )的钴基合金复合涂层 (Cr3C2 / Co) ,对比研究了 Cr3C2 对熔覆涂层的组织、显微硬度及耐腐蚀磨损性能的影响。
短句来源
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  镀层
     The potentiodynamic polarization test reveals a far lower corrosion current of Ni-W-P/Pr2O3 coating (2.977 μA/cm2) than that of Ni-P coating (10.11 μA/cm2),indicating a better corrosion resistance of the Ni-W-P/Pr2O3 coating than that of Ni-P coating.
     极化曲线结果表明,化学镀Ni-W-P/Pr2O3镀层的自腐蚀电流(2.977μA/cm2)远远小于Ni-P镀层(10.11μA/cm2),说明Ni-W-P/Pr2O3的耐蚀性能比Ni-P镀层好。
短句来源
     The results of polarization curve measurement show that self-corrosion current density of the Ni-Cu-P coating(4.037 μA/cm2) is much less than that of the Ni-P coating suggesting corrosion resistance of the Ni-Cu-P coating being better than that of the Ni-P coating.
     极化曲线结果表明,化学镀Ni-Cu-P合金镀层的自腐蚀电流密度(4.037μA/cm2)远远小于Ni-P合金镀层,说明Ni-Cu-P合金镀层的耐蚀性能比Ni-P合金镀层好。
短句来源
     The research results show that corrosion resistance of low-iron zinc alloy coating (Fe%wt<1% ) is high after passivation, while high-iron zinc alloy coating (Fe%wt>1%) , which is not needed passivation, is not satisfactory.
     国内外对Zn-Fe合金镀层的研究表明:低铁Zn-Fe合金镀层(Fe%wt<1%)耐蚀性较高,但是镀层需要钝化;
短句来源
     A Ni Co P Al 2O 3 composite coating was electrolessly plated after Ni Co P coating on Fe matrix. Then composite coating was immersed in 5 mol/L NaOH solution to obtain an active Ni Co P coating (middle coating) with microholes,on which an active surface coating of NiCo 2O 4 was pyrolysisly formed by dipping in 2.0 mol/L Ni(NO 3) 2, Co(NO 3) 2 several times.
     在贱金属铁基上表面化学镀Ni Co P ,然后通过化学复合镀制得Ni Co P Al2 O3中间层 ,复合镀层用 5mol·L- 1NaOH溶液浸出 ,可制得新型Ni Co P微孔活性中间层 ,在中间层上再涂覆匹配性较好的NiCo2 O4表面活性层 ,该活性层是由一定Ni(NO3) 2 和Co(NO3) 2 的量配比通过高温热解而成 .
短句来源
     Galfan coating (Zn-5%Al-RE) is an appropriate substitute for the hot-dipping galvanizing coating because of its excellent corrosion resistance.
     优良的耐蚀性能使Galfan(Zn - 5 %Al-RE)合金镀层最有希望代替传统的镀锌。
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  “coating (”译为未确定词的双语例句
     In 2003 and 2004, soybean seed was coated with JinFu seed coating (1:80, 1:100, 1:120, 1:150), 35% Carbendzim-Carbofurum-Thiuram seed coating, 50% carbendazim and 50% Thiuram salt wettable powder respectively.
     通过在2003—2004年用金斧种衣剂(1:80、1:100、1:120、1:150)、35%多·克·福悬浮种衣剂(1:60)以及50%多菌灵可湿粉和50%福美双可湿粉包衣处理大豆种子。
短句来源
     Composition of the surface coating (NiCo 2O 4) was verified by X ray diffraction analysis, which showed that no NiO and Co 3O 4 existed.
     X射线衍射结果表明表面活性层是由NiCo2 O4 组成 ,不存在NiO和Co3 O4 的独立相。
短句来源
     Construction Method of Cement-base Infiltration-crystallization Waterproof Coating(YJGF36-2002)
     水泥基渗透结晶型防水涂料工法(YJGF36-2002)
短句来源
     his paper introduces the surface image and composition of the coating (Y2O3),base metal (Ir) and their interface in Y2O3-Ir cathode. The observing results,and characteristics ofY2O3 Ir cathode are also discussed.
     本文介绍了Y_2O_3-Ir阴极的涂层(Y_2O3)、基金属(Ir)及其界面的形貌及成分,讨论了观察结果,并对Y_2O_3-Ir阴极的某些特性进行了探讨。
短句来源
     A plasma coating (Ni-Cr-B-Si) on the Al-Si Alloy was melted by a 5 kW CO_2 laser.
     利用5kWCO2激光器,对AlSi合金表面的等离子涂层(NiCrBSi)进行熔覆处理。
短句来源
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  coating
Mordenite composite membranes were prepared by means of coating a porous α-alumina support with nanosized mordenite seeds followed by hydrothermal crystallization.
      
Results showed that optically variable pigments can be prepared by coating Cr2O3 on the surface of the pretreated TiO2-coated mica.
      
Effect of TiO2-coating on structure and electrochemical performance of LiCo0.2Ni0.4Mn0.4O2
      
LiCo0.2Ni0.4Mn0.4O2, as the cathode material for lithium ion batteries, was modified by TiO2-coating.
      
The results suggest that a small amount of TiO2-coating does not change the crystalline structure, but considerably improves the electrochemical performance of LiCo0.2Ni0.4Mn0.4O2 in terms of capacity delivery and cyclability.
      
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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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