有变化的

In addition, the changes of molecular geometry, atomic natural charge and IR spectra of the reaction system during the crucial step of O to attack H showed that the rupture of C—H bond and the formation of O—H bond were concerted stepwise. Obvious changes of atomic natural charge happened to atoms C(1), H(11), O(28), O(29) and N(27). The bond lengths and bond angles related to these atoms were also varied greatly.

NO2中O进攻1-H决速反应过程中，分子几何、原子自然电荷及IR光谱变化表明， C—H键的断裂和N—H键的形成是一个协同过程；参与新键形成和旧键断裂原子C(1)， H(11)， O(28)， O(29)和N(27)的原子自然电荷及与其相关的键长、键角有明显的变化。

This paper describes the presence of hydrocarbon Subsfances in pressed peanut oils determined by gas chromatographic method,the main Component is pen-tane, the quantities of pentane are variable depending on the heat treatments to the oils.

本文叙述了用气相色谱法测定出机榨花生油中的烷烃类物质，其中最主要的成分为戊烷，戊烷的量随油脂受热程度的变化而变化，一般呈正变关系。这个方法是准确而可行的，有一定的工业应用价值。

Analyses show that refractive index changeinduced by thermal effect is similar to the change induced by other effects for linearabsorption,if laser pulse width is far less than the characteristic time of sample,i.e.refractive index change is directly proportional to spatial part of incident pulse laserintensity,so time averaged nonlinear refractive index can be defined.

结果表明，当激光脉冲宽度远小于被测样品的特征时间时，对于线性吸收来说，其热效应产生的折射率变化与其它效应产生的折射率变化有类似的形式，即与入射脉冲激光光强的空间部分成正比。因而可定义时间平均非线性折射率。在这种情况下，可用通常的Z-scan法进行非线性折射率及热光系数的测量，所得结论符合以前的实验结果。

The disparity in polarity between heavy fraction and residue was the main cause of altering the colloidal stability of residue system.

结果表明，SARA组分的变化对混合体系的胶体稳定性有影响，但不是影响其稳定性的主要因素，组分极性上的差距是造成混合体系稳定性变化的主要原因。

In order to meet the demand of precise measurement and applications, the principle of phase retardation with oblique incident angle is expounded, based on the total-reflection phase transformation theory of the phase retardation. By means of Fresnel rhomb, the variation law of the phase retardation for rhomb-type retarder with the incident angle is analyzed. The result indicates that incident angle has obvious influence over the phase retardation.The phase retardation is sensitive to the incident angle, and also has close correlation to incident position of the incident ray, which is asymmetrical to the incident position of the incident ray.

为满足精确应用和测量的需求，从相位延迟的全反射相变理论出发，阐述了斜入射相位延迟原理，以菲涅耳菱体为例，分析了菱体型相位延迟器相位延迟随其入射角变化的规律性，结果表明：当光线非严格准直时，光的入射角对相位延迟量有明显的影响，延迟量不但对入射角变化敏感，而且还与入射光线的入射方位密切相关，呈不对称形式。

First observation of the essential oil of UVA (320-400nm) absorption, taking nine more before the absorption of essential oils and nine of the past record or doubt further analysis of essential oils, UVA nine large oil absorption of the former are: cinnamon, pheasant pepper, sweet orange, lemon, basil, grapefruit, bluegrass rock, roses, dill, 9 kinds of essential oils may be phototoxic as follows: orange blossom, bergamot, fennel, lemon grass, red mandarin, citronella oil, ginger oil, Australia sandalwood oil, lime; E.

首先观察精油的UVA(320-400nm)吸收度，取前九名有较大吸收之精油及九种过往记载或存疑之精油进一步分析，UVA较大吸收度之前九名精油分别为：肉桂、山鸡椒、甜橙、柠檬、罗勒、葡萄柚、岩兰草、玫瑰、莳萝，九种可能光毒精油为：橙花、佛手柑、茴香、柠檬草、红柑、香茅油、姜油、澳洲檀香油、莱姆；大肠杆菌抑菌圈变化中，柠檬、红柑及葡萄柚精油有明显的扩大现象；pUC119 DNA电泳结果，不同精油於电泳模式中，随UVA照光能量增加产生不等断裂情形，除玫瑰精油无影响，其余精油在UVA照光能量增加下皆有不等的DNA断裂情形发生，须再进一步试验。

The calculated results show that the CaI vibrational population peaks moved to low value.The calculated cross-section changed slightness duo to isotope effect. The angle product distributions tend to backward scattering also and isotope effect is not observably. Thecalculated

由于同位素效应的影响，产物Cal的振动态分布向低振动态转移；反应体系的散射截面在低碰撞能和高碰撞能处有些微变化；受到反应物质量因子变化的影响，转动取向值减少，产物转达取向强烈；产物的角分布同位素效应不明显。

There are blue and green emission spectral series in the phosphors activated by three valence ions of Terbium.

三价铽离子激活的磷光体有兰色和绿色两个发射谱线系列。本文分析了这两个系列谱线的强度，随着激活剂浓度而变化的实验结果，发现在激活剂浓度达到一定数量之后，当继续增加激活剂含量时，兰色和绿色发射谱线相对强度的变化规律，和加入敏化剂的结果是一致的。

Currently most domestic break-test-plateform adopt the liquid-pressure-servo technique, which possesses the advantages of higher frequency-response and higher controlling exactness, but in the same time , the disadvantages of higher cost, variation of function with the change of oil viscousness produced by the fluctuation of temperature.

目前，国内的制动器试验台大多采用的是液压伺服控制，这种控制具有响应频率高、控制精度高等优点，主要缺点是系统成本高、油液粘度随温度变化引起工作性能的变化、且液压系统对油液的污染比较敏感，必须要有良好的保护和过滤措施。

The results show that(1)the barrier and passage effects of longitudinal range-gorge break the law of zonal distribution of air temperature in Yunnan,the law of longitudinal distribution of air temperature is obvious and the spatial distribution is very zonally asymmetry;(2)under the effect .

结果表明：(1)纵向岭谷地形的"阻隔—通道"作用，使云南温度的纬向分布规律被破坏，经向分布规律比较明显，空间分布极不均匀；(2)纵向岭谷作用下云南热量地域分布差异显著，南部热量丰富，北部欠缺，西部比东部丰富，河谷地区热量最丰富，滇西北及山区热量最贫乏；(3)6、7月热量最丰沛，1月最为贫乏，春季热量好于秋季；(4)近30 a云南年平均气温有明显的上升趋势，存在明显的7 a、11 a、18 a周期振荡；(5)云南年平均气温具有大范围位相一致的变化趋势及东部冷与西部暖的变化类型。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。