钝的

Under field continuous drought stress, growth rate, branches of stolon, leaf lengthobviously declined, nevertheless, leaf water content increased and MDA content decreasedsignificantly during field water deficit. SOD activity of the four turf grasses increased at thebeginning of water deficit and then decreased with drought stress. POD activity ofAugustinegrass increased rapidly and then kept stable with water deficit, however, PODactivity of Centipedegrass changed indistinctively.

田间持续干旱下，随干旱时间的延长，钝叶草和假俭草匍匐主茎的生长速率、主茎分枝数以及叶片长度显著(P＜0.05)下降；叶片含水量呈上升趋势；叶片MDA含量呈下降趋势(P＜0.05)；叶片SOD活性总体上呈先上升后下降趋势，但德阳假俭草和宫崎钝叶草峰值出现较早；钝叶草叶片POD活性先上升(P＜0.05)后趋于稳定，而假俭草叶片POD活性变化不显著；四个草坪草叶片CAT活性先下降(P＜0.05)后趋于稳定。

The on-line wheel dressing monitoring experiments were made to investigate the bispectrum feature of acoustic emission signals when the diamond sharpness ratio was sharp, middle blunt and blunt, and a diamond blunt feature extraction method based on main diagonal slic...

通过砂轮修整过程在线监测实验，分析了金刚笔在锐利、中等钝化和钝化状态下，修整过程中声发射信号的双谱特征，提出了归一化双谱模对角切片特征提取方法。研究表明，采用基于声发射的双谱分析方法可以有效监测砂轮修整过程中金刚笔的钝化状态。

Based on the insensitive principle,cohering principle and the influence of the proportion of ingredient on the safety,a new kind of insensitive explosive is developed with PETN as primary material and with wax,polyisobutylene and black lead as desensitizers and adhesives.

充分考虑了钝感机理、粘结机理和组分配比对安全性的影响特性，研制了一种以PETN为主体，蜡、石墨、聚异丁烯为钝感剂与粘结剂的新型钝感炸药，进行了冲击波感度、机械感度以及火烤特性试验。

Based on the insensitive principle, cohering principle and the influence of the proportion of ingredient on the safety, a new kind of insensitive explosive is developed with PETN as primary material and with wax, polyisobutylene and black lead as desensitizers and adhesives. The experiments on the sensitivity of blast wave, mechanical sensitivity and the character of burning were carried out.

充分考虑了钝感机理、粘结机理和组分配比对安全性的影响特性，研制了一种以 PETN 为主体，蜡、石墨、聚异丁烯为钝感剂与粘结剂的新型钝感炸药，进行了冲击波感度、机械感度以及火烤特性试验。

The analysis of the mechanical sensitivity and the density indicated that the system which contained the F rubber, ceresin and graphite had a very good effect on shaping performance and mechanical sensitivity. Both the friction and impact sensitivity were 0. When the pressure reaches to 900 kg/cm2 the density ratio could achieve 99.2%.

对机械感度和压制药柱密度的测量和分析，研究结果表明在九种粘结-钝感体系中，F橡胶、蜡类钝感剂、石墨组成的粘结-钝感体系成型性能和机械感度最为优越，其摩擦和撞击感度都为0.00，900比压时可压系数可达到99.2%。

The trivalent chromium passivation film based on zincate plating obtained has compact structure with no obvious crack, and excellent anticorrosion performance. Different compositions are detected from the surface to inner film, the surface mainly contains Cr2O3-Cr3-ZnO compound, the inner (1030 nm to surface) composes of Cr2O3-ZnO-Zn.The forming process of passivation film possibly consists of four steps which are zinc dissolution, basic area appearance, gelatiniform film forming and converting to passivation film.

结果表明：锌酸盐镀锌层的三价铬钝化膜表面结构致密、无明显裂纹，具有较好的耐腐蚀性能；这种钝化膜表层与里层的组成不同，表层的组成为Cr2O3-Cr3-ZnO共混物；里层(离表层10~30 nm处)的主要组成为Cr2O3-ZnO-Zn共混物；钝化膜的成膜过程可能包括镀锌层的溶解、碱性薄层的形成、胶状膜的形成和胶状膜转化成钝化膜4个步骤。

Pit corrosion is a main kind of localized corrosion. The process of forming pit corrosion includes three stages-formation of pit source, development of pit cave and forming occluded corrosion cell. Molybdate series inhibitors can be inhibitive, for it can control three stages of pit development. First, there is apparent synergistic effect between molybdate and phosphate, which can suppress formation of pit source. Second, there is apparent passivation of molybdate inhibitor according to electrochemistry analysis, which let oxidation film in unoccluded cave repassivate.

首先，钼酸盐与磷酸盐或硅酸盐复配的缓蚀剂具有较理想的缓蚀性能，并且有明显的协同作用，从而能抑制部分点蚀核的产生；其次，钼酸盐复配缓蚀剂的使用，从电化学的角度分析，具有明显的钝化性能，且钝化区间较宽、维钝电流密度较小，从而能使未封闭的蚀孔或点蚀核附近的氧化膜再钝化，得到有效的修复；最后，对于还有部分蚀孔发展成为闭塞腐蚀电池的情况，钼酸盐、磷酸盐能进入蚀孔内部并且在酸性条件下生成铁钼磷酸盐，从而有效地减缓了点蚀的恶化，抑制了腐蚀的发展。

By using the liquid phase growth of the GaS film, the properties of the sulfurized surfaces is quite stable, which proves the effective of this method.

用液相生长了GaS钝化膜，钝化表面的性质极其稳定并且取得了非常有效的钝化效果。

The optimum parameters of chemical passivation in citric acid solution were 4%citric acid, 65°C, 15min, and the time of re-treat in 50%HNO_3 was 11min.

硝酸电化学钝化的较优工艺为：硝酸浓度10％，800mV恒电位阳极极化，25℃左右，时间15min；柠檬酸化学钝化的较优工艺为：柠檬酸浓度4％，温度65℃，钝化时间15min，浓硝酸后处理11min。

Comparative tests of black color passivation of zinc coating based on reference formulas published in literature including copper salt method, silver salt method and method of mixture of copper salt and silver salt were conducted.

根据已发表的镀锌层黑色钝化的铜盐法、银盐法及铜银结合法等类型的黑色钝化的参考配方进行了对比试验，并就其中较为理想的钝化配方的成分含量及其作用、操作条件的影响做了细致的分析，并对钝化液配制时的注意事项予以说明。

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。