钝的

The result indicates that the high pH concrete pore solution can reduce corrosion of Cl~ on the carbonize steel.

结果表明，高pH值的混凝土孔隙液能减缓氯离子对碳钢的腐蚀；当pH≥13.6时，在NaC l浓度小于3%的混凝土孔隙液中，碳钢表面因生成钝化膜而不被腐蚀；当pH≤9时，混凝土孔隙液中无论是否存在C l-，碳钢均会被腐蚀；当pH=12.5时，混凝土孔隙液中NaC l浓度小于0.05%，碳钢则不被腐蚀；当混凝土孔隙液中的C l-浓度达到临界氯离子浓度时，碳钢表面的钝化膜开始损坏而被腐蚀，碳钢的腐蚀速度随着C l-浓度的增加而增大。

Leaf sheaths loose, strongly compressed, keeled, basal sheaths imbricate; leaf blades broadly linear to lanceolate, flat or folded, 5–20 × 0.6–1.2 cm, glabrous or adaxial surface pilose, apex obtuse; ligule 0.3–0.5 mm. Racemes 2–5, digitate or subdigitate, 4–10 cm, only slightly diverging; rachis glabrous. Spikelets oblong-lanceolate, 2–2.7 mm, pilose or glabrous, apex acute; upper glume and lower lemma 2–4-veined, midvein absent, laterals marginal; upper lemma pale, oblong-elliptic, shorter than spikelet, obtuse with an apical tuft of hairs; stigmas pale.

叶鞘松散，强烈压扁，龙骨状，基部的鞘覆瓦状；叶片宽线形到披针形，平的或折叠， 5-20 * 0.6-1.2 厘米，无毛的或正面具柔毛，先端钝； 0.3-0.5毫米外消旋体2-5的叶舌，指状或者4-10厘米，subdigitate，只是稍微分歧；轴无毛长圆状披针形的小穗，2-2.7毫米，具柔毛或无毛，先端锐尖；上面颖片和更下部的外稃2-4－脉，中脉无，边缘；浅，长圆状椭圆形的上面外稃，短于小穗，钝具一顶端1束毛；柱头浅。

The experimental results indicate that the treatment process of copper alloy using benzotriazole can improve the corrosion resistance greatly.

目前常采用的是铬酐及重铬酸盐的钝化处理工艺，虽然效果比较好，但由于铬化处理过程中的铬离子对人体和环境的污染严重，因此研究针对不同使用环境的、良好的无铬钝化工艺具有很大的现实意义。

In addition,the mechanism isdiscussed on the prevention of interface diffusion via S-passivation.The FexS-dominateinterface reaction layer,is considered to prevent the reaction of Fe with As further meanwhilestabilizes the interface,therefore inhibits the diffusion from the substrate into Fe overlayer,which is different from the model of Anderson.

并且提出了S钝化阻止界面扩散的内在机制，认为在钝化层基底上形成的界面反应层，阻止了Fe和衬底As的反应并稳定了界面，从而阻止衬底元素向薄膜层的扩散，这与Anderson提出的模型不同。

Methods According to the degree of the wide and bulbous tip, several procedures were adopted to beautify them.①Thinning of the alar cartilage;②Trimming of the skin of tip;③Mechanical polishing of the tip skin;④Insertion of a septocolumellar support;⑤Narrowing of the base of nose with the clinching suture;⑥Marginal resection of the alae.

根据鼻尖的圆钝程度，采用内外一起，综合步骤相结合的方法：即在塑造鼻尖内部软骨形态的同时，修整鼻尖部外覆的皮肤，并辅以机械磨削，人工支架，埋线塑形等手段，以纠正鼻尖的圆钝肥大。

Properties of sulfur passivated GaAs (100) surfaces are studied by using photoelectron spectroscopy and photoluminescence measurem...

本文通过光电子能谱的手段和光荧光谱的方法分析了硫钝化GaAs(100)的性质并在此基础之上对硫钝化的实际应用进行了初步的尝试取得了较好的效果。

Properties of sulfur passivated GaAs (100) surfaces are studied by using photoelectron spectroscopy and photoluminescence measurements. Some practical applications of the sulfurizing technique are carried out and very promisingt results are obtained.

本文通过光电子能谱的手段和光荧光谱的方法分析了硫钝化GaAs(100)的性质并在此基础之上对硫钝化的实际应用进行了初步的尝试取得了较好的效果。

The methods and the precesses of the silver anti-tarnishing ,such as extremely thin metal coating,anodic passivation treatment,cathodic electrophoresis,chemical passivation and self-assembled monolayer,have been evaluated.

分析了银器表面在硫化物、硫氧化物等腐蚀性气体环境中变色的机理和影响因素，讨论了银器表面处理防变色(贵金属或合金的涂层、阳极化钝化、阴极电泳、化学钝化、自组装单分子膜的防腐蚀等)的方法和加工技术，并提出了包装贮存材料处理防银器变色的新途径。

AES result shows that this beneficial effect is mainly related with the formation of passive film with chromium oxide on the bombarded surface.

钝化膜的俄歇电子能谱分析结果表明，腐蚀性能的改进可归因于表面形成了一层富铬的以氧化膜为主的钝化膜，也与混合界面上形成的亚稳相有关。

When combined by heavy chromate-sodium hydrogen sulfite and by silane couplant, rapidly quenched NdFeB permanent magnetic particles, can form passive pycho-film (containing Cr〓O〓) and silane composite coating, which can improve greatly its oxidation resistance of NdFeB particles and increase the magnetic properties of bonded NdFeB Permanent Magnetic Composite .

采用重铬酸盐钝化-亚硫酸氢钠还原与硅烷偶联剂处理相结合来包覆处理快淬NdFeB永磁粉，能在快淬NdFeB表面形成致密的含Cr〓O〓钝化膜/硅烷复合涂层，它们显著地改善了快淬NdFeB的抗氧化性并提高了粘结NdFeB永磁复合材料的磁性能，并与其它的NdFeB包覆处理工艺所获得的涂层进行了比较。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。