查询词典 pearl coating

The weight percentage for the components of the hyaline coating is as follows: SiO2 45 to 54 percent, B2O3 15 to 20 percent, one or more of Na2O, K2O and Li2O, 10 to 24 percent, one or more of TiO2, ZrO2 and ZnO, 6 to 18 percent , and the rest is one or more of CaO, MgO and CeO2. Firstly, the glass powder is mixed with the mill additions to be pulped and then plated on the surface of titanium or the titanium alloy. After being dried, the surface of titanium or the titanium alloy is directly used for a thermal hydrogen treatment or smelted at a temperature of 900 to 1, 000 DEG C for 15 to 30 minutes and then a hyaline coating with a thickness of 20 to 70 micrometers is formed on the surface of titanium or the titanium alloy; secondly, titanium or the titanium alloy plated with the coating is conducted a thermal hydrogen treatment. After the treatment technique is finished, the coating flakes off automatically in the process of cooling; and finally, a surface treatment is supplemented to meet the requirement of the workpiece surface.

该玻璃质涂层成分按重量百分比：45-54SiO2，15-20B2O3，10-24Na2O、K2O、Li2O中的一种或多种，6-18TiO2、ZrO2、ZnO中的一种或多种，余量CaO、MgO、CeO2一种或多种，将玻璃粉与磨加物混合制浆并涂覆在钛或钛合金表面，干燥后直接用于热氢处理，或在900-1000℃下熔烧15-30min，在钛或钛合金表面制得20-70微米玻璃质涂层，随后将制有该涂层的钛或钛合金置于氢气气氛下进行热氢处理，处理工艺结束后，涂层在冷却过程中自剥落，最后辅以表面处理即可满足工件表面要求。

In the coating, the nodular defect was observed to worsen severely the properties. For testing under oxidation condition, the nodular defect results in the internal oxidation of Al. No single Al oxide scale may be formed at 1100℃ owing to consumption of Al. Under hot corrosion, it becomes as short-path for diffusion of S through the coating, thus sulphuring the coating together with the substrate. During thermal shock testing, it may act as the source of cracking, and moreover, if cyclic stress applied, the cracks propagate toward the substrate, the thermal fatigue properties of coating will be worsened.

结果表明：在氧化条件下，缺陷导致Al的内氧化，在1100℃时，由于Al的大量内消耗，涂层表面已不能形成单一的氧化铝膜，使氧化性能下降；在热腐蚀条件下，缺陷成为硫向涂层中扩散的通道，导致涂层及基体的硫化；在冷热疲劳条件下，缺陷成为裂纹源，在交变应力作用下，裂纹向基体中扩展，降低了涂层的热疲劳性能。

B〓C coating possessed 4% of porosity, 12. 8Gpa of bonding strength, 28Gpa of microhardness, and its modulus is up to 230Gpa. It would provide a kind of coating material with excellent properties for many industrial fields.(2) The phase composition of B〓C coating was studied by XPS, XRD and EDS. It was found that: the oxidation activity energy of B〓C powder and coating is different, which is due to the difference of phase composition between them.

用XPS、XRD和EDX研究了碳化硼涂层的相组成，发现碳化硼粉末在涂层形成过程中不可避免的存在分解；比较了碳化硼涂层和粉末在高温下的氧化行为，发现涂层的氧化活化能比粉末要低，这是由于涂层和粉末相组成不同所造成的。

The effect of domestic GCC and clay on pre-coating coverage of the coated kraft liner board was studied. In order to optimize the second pre-coating, the effect of using TiO2 and using calcined clay to replace part of the TiO2 as the pigment on the coating coverage in the second pre-coating was also investigated.

研究了国产GCC、高岭土两种颜料及其不同组合对涂布牛皮卡纸预涂覆盖性的影响，并在此基础上，对二次预涂进行优化，研究了二次预涂中添加进口钛白粉及用国产煅烧高岭土部分代替进口钛白粉和高岭土对涂层覆盖性的影响。

Nanometer diamond composite coating drawing die, is a kind of completely new product which is deposited a composite coating of traditional diamond coating and nanometer diamond coating by CVD method on the surface of die hole (especially reduction angle and bearing ) of Tungsten Carbide drawing die and then be polished by mechanical means and plasma means.

纳米金刚石复合涂层拉拔模具，是以硬质合金为衬底，采用化学气相法在模具的内孔表面涂覆常规金刚石和纳米金刚石复合涂层，并对涂层进行研磨抛光后得到的一种全新产品。

The results show:(1) After soybean seed is treated with seed coating, The length of lateral root anlage Initiating area obviously increases in contrast with control (seed which is not coated with agent is regarded as control; shortened form is CK).The order is from greatness to smallness in turn as follow: HK＞ND＞CK.(2) Initiating progress of lateral root anlage is quickened when seed is treated with seed coating. General trend is as follow: HK＞ND＞CK. By variance analysis, treatment and control has obvious difference.(3) Initating status of lateral root anlage is definite related with contents of endogenous hormone. Occurring of lateral root is as the result of some endogenous hormone corresponded and playing manysided role, especially IAA plays important role in the cause of inducing to occurring of lateral root anlage.(4) The use of seed coating may elevate the number of lateral root anlage occurring and shorten the time of lateral root anlage occurring, especially the effect of Chemical control seed coating is better.

结果表明：(1)种衣剂包衣后，侧根原基发生区长度明显比对照(不包衣的种子为对照，用CK表示)增加，从大到小依次为：HK＞ND＞CK；(2)种衣剂处理加快了侧根原基的发生进程，总的趋势是HK＞ND＞CK，经F检验表明，处理和对照差异极显著；(3)侧根原基的发生状况与侧根原基发生区内源激素的含量有一定的关系，侧根的发生是几种植物内源激素相互协调、综合作用的结果，其中生长素类物质在诱导侧根原基的发生过程中起主导作用；(4)应用种衣剂可以提高侧根原基发生的数量，缩短侧根原基的发生时间，其中以化控种衣剂效果最好。

The results show that α-Al2O3 in the two kind s of coatings decreases while the γ-Al2O3 increases after spraying. Rutile-TiO2 transforms to brookite-TiO2 and the inners tress of coating was increased so as to aggravate the expansion of cracking. The pores are small but dense in the conventional coating while bigger but loose in the nano-structured coating. The pores in the nano-structured coating exist almost inside the partially melted region. The pores generated during spraying and the cracks generated during the course of thermal oxidization because of thermal stress are the direct reasons why coatings fail.

结果表明：2种粉末在喷涂之后，涂层中的α-A12O3均有所减少，生成了γ-Al2O3，金红石TiO2相转变成了板钛矿型TiO2相，增加了涂层的内应力，加剧了裂纹的扩展；常规微米涂层中的孔洞细小但密集，纳米涂层中的孔洞较大但不密集，且大部分的气孔都存在于部分熔化区的内部；涂层在喷涂过程中所生成的气孔以及热氧化过程中由于热应力而产生的裂纹是造成涂层失效的直接原因。

The polyurea coating was tested with Taber tribomachine and the highp ressure water jet erosion tester for studying the wear behavior of polyure coating under conditions of dry friction and highspeed water jet contained sand. The morphology of the coating was observed with SEM and Chromatic confocal 3D Profiler. The surface component of test samp les was measured by FT2IR Spectrometer and Electron Energy Disperse Spectroscopy. The p roperties of polyurea coating under two testing conditionswas analyzed.

为研究聚脲涂层在干摩擦条件下和高速含砂水流冲蚀条件下的性能变化情况，用 Taber 磨损试验机和高速含沙水射冲蚀磨损试验机测试了聚脲涂层的磨损性能，用扫描电子显微镜和白光共焦三维轮廓仪观测涂层的磨损表面形貌，用表面红外光谱和电子显微镜能谱元素分析了涂层表面试验前后的组分变化，分析了涂层在2种摩擦条件下的磨损情况。

OBJECTIVE: To establish an effective technique and method of in vitro separation and culture of mantle of the pearl oyster, and to determine the optimal method of forming pearl sac with the intact structure and secretion function, thus producing pearl.

目的：建立一套有效的马氏珠母贝外套膜组织细胞体外分离及培养的技术和方法，同时探讨体外形成具有完整结构和分泌功能的珍珠囊并最终生成优质珍珠的最佳方法。

At present, the ordinary and low quality freshwater cultured pearl products could not meet the fashional needs of the most consumers. However, with the further development of the cultivation techniques and process techniques, many new varieties of pearl appear in the pearl market.

目前，普通、低品质的淡水珍珠产品已无法满足大部分消费者的时尚需求，但随着珍珠养殖技术与加工技术的进一步发展，市场上出现了许多新的珍珠品种。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。