钝的

A larger error often occurs in measured results by multi-specimen J-R curve method because of the difficulty in determining the blunting line equation. On the basis of considering the effect of loading rate on plastic-flow stress, a new blunting line equation in dynamic loading has been obtained: J=2NK0.5(subscript εFΔa.

针对多试样J-R阻力曲线法因钝化线的不易确定性常造成测试结果J误差较大的情况，考虑了加载速率对塑性流变应力的影响，给出了一新的动载条件下的钝化线方程：J=2NK0.5

Considering the non-stationary specialties of AE signals, the diamond blunt feature extraction method based on bispectrum was studied. Furthermore, the diamond blunt feature extraction method based on main diagonal slice of normalized bispectrum magnitude of AE signal was proposed.

深入研究了砂轮修整过程中声发射信号的产生机理及其时频特征，提出了基于声发射信号的小波包频带能量分解的金刚石笔钝化状态特征提取方法；将高阶累积量和双谱理论引入到金刚石笔钝化状态的特征提取中，提出了基于声发射信号归一化双谱模对角切片的特征提取方法。

In contrast, in 55℃ treatment for 5 and 10 minutes, it was increased to about 140% of the control, and was further increased to about 240% and 290%, resp. after following readaptation to room temperature in 60 minutes. Thus in the inactivation of the PSⅡ reaction centers, a slow, indirect process was induced by high temperature stress, in addition to a prompt, direct action.

而55℃5分钟和55℃10分钟高温胁迫后，在恢复期内其PSⅡ无活性中心的含量从常温的1.4倍左右的基础上分别上升至2.4和2.9倍，说明高温胁迫对PSⅡ中心除了起瞬时钝化作用外，还存在一个间接的较为缓慢的持续钝化作用。

However, it did speed up the dissolution in the prepassive range, changing oscillation behaviors of iron in 0.5 mol.dm-3 H2SO4. The reactivation process of passivated iron was mainly determined by the electrode potential, and had little to do with the external magnetic field. The investigation also proves that holographic microphotography is a very effective technique in the study of effects of the magnetic field on the electrochemical processes.

外加磁场对铁的活化溶解没有明显的影响，但加快了预钝化区铁的溶解，从而显著改变铁的电化学振荡行为；钝化铁再活化过程主要取决于电极电位，与外加磁场没有关系；研究表明全息显微术是磁电化学研究中一种十分有效的方法。

Among them, nitrate-sulfuric acid system with higher nitrating activity can get high yields at mild condition in the nitration of deactivated aromatic compounds and could be used in the laboratory and industrial applications.

其中，硝酸盐/硫酸体系具有较强的硝化能力，对于钝化芳环，可以在温和条件下以高收率得到硝化产物，在实验室制备或工业应用中具有较高的应用价值；其他硝化方法由于各种原因暂时不能对钝化程度较高的芳环进行硝化，还需进一步研究具有较高活性的硝化体系。

Effect of annealing at high temperatures on compound films structures is great. For three hours in pure nitrogen(99.999 9%) ambients at 900℃ are annealed. The structural feature changes of iron-passived porous silicon are studied after being annealed by SEM and XRD.

退火处理对复合薄膜的形貌和结构都将产生较大的影响，对由水热腐蚀技术制得的铁钝化多孔硅进行高纯氮气(99.999 9%)下900℃退火3h，利用扫描电镜、XRD等分析手段对比研究了铁钝化多孔硅在退火前与退火后的结构变化特点。

That is attributable to the fall of the film resistance of the passive film and the decrease of content of chromium oxides in the passive film.

硫离子的浓度越大，测得的光电流越大，而Eg越小，这可归因于钝化膜膜电阻的降低及钝化膜中氧化铬含量的减少。

With low donor and acceptor density and anion adsorption on surface of passive film, effectively preventing the adsorption of Cl(superscript -) in passive film, the resistance to localize corrosion of passive film was greatly improved.

低的施主与受主浓度及钝化膜表面负电荷的增强，可有效排斥侵蚀性Cl在钝化膜表面的特性吸附，有利于提高不锈钢的耐局部腐蚀性能。

The structure of sulfonated polys from DB is similar to that of sulfonated poly(arylene thioether phosphine oxide)s from TB. The latter could be regarded as the"product"of the former provided that the ether unit of the former was replaced by the thioether unit. The studies illustrated that the latter exhibited much better oxidative stability than the former. This is due to the fact that the thioether unit of the former was oxidized into the sulfone or sulfoxide unit in Fenton reagent, which inactivated the adjacent benzene rings and thus retarded the degradation reaction.

从结构上看，后者可以看成是前者的醚基团被硫醚基团取代后的&产物&，其耐氧化性能比前者好得多，这是因为后者的硫醚基团在Fenton试剂中被氧化成为砜或亚砜基团，而砜或亚砜基是钝化基团，钝化了与之相连的苯环，阻碍了降解反应。

In a word, most agronomic traits of Zhonghuang13 had insensitivity and stability to photoperiod, and Zhonghuang13 was extensive photoperiod adaptability soybean which could be planted at the area of multi-ecotype.To make photoperiod especially importance of long-day for growth and development of short-day crops clear, In the current study, a photoperiod-sensitive and late maturity determinate soybean cv.

总的来说，中黄13相对于中黄24和凤交66-12在多数的农艺性状上表现出一定的稳定性，对光周期反应相对钝感，进一步证实了中黄13是一种感光性相对弱的钝感型品种，可适应多种生态类型的地区种植。

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。