前后的

The changes of morphology and mass in the process of pretreatment, the morphology and the phase constitution of chemical conversion film formed by stannate were studied using scanning electron microscope, X-ray diffraction and the mass loss method. The corrosion resistance of film were studied by salt spay test and damp test.

利用扫描电镜、X射线衍射和质量损失等手段，研究预处理前后的表面形貌及质量变化和锡酸盐化学转化膜层表面形貌及其相组成，采用盐雾和湿热实验箱检验膜层的抗腐蚀性能。

XRD and IR were used to study the change of zinc stearate.

利用XRD、IR，研究了催化剂在反应前后的变化，确定了其失活的主要原因

The effects of temperature, and amount of stearic acid on the surficial modification to tourmaline are studied.

采用硬脂酸对电气石进行表面改性，研究了温度，时间和改性剂添加量等因素对电气石改性效果的影响用活化指数和IR对改性前后的电气石进行了表征及机理分析。

Then for the cases when the pumping power is below and above the lasing threshold, the emission intensity, excitation mode and photo distribution are analyzed from theoretical and experimental level.

然后对随机激光泵浦过程中，阈值前后的发射光强、激发模式以及光子数分布，进行了理论及实验上的分析与探讨。

Methods To measure the levels of ET-1 in the tissue fluid from vitiliginous lesion and the normal skin by the method of radio immunity.

方法采用放射免疫方法测定27例白癜风患者在NB-UVB治疗前后的白斑部位和非白斑的皮肤组织液中ET-1含量。

Comparing the situation of acknowledge of AIDS knowledge and behaviour transformation between control group and interventional group, the intervention effectiveness was assessed.

通过对比干预前后的艾滋病知识知晓和行为形成情况，评价干预的效果。

Using Gross formula, the true total blood loss was calculated depending on the height, body mass and pre-and post-operative Hct, and hidden blood loss was gotten by subtracting the visible blood loss from total loss.

通过Gross方程，根据身高、体质量和手术前后的红细胞比容计算所有患者的总失血量，减去显性失血部分即得隐性失血。

It is found that the digital speckle images have fractal characteristics, and there is correlation between the characteristics of undeformed and deformed states.

本文研究发现数字散斑图具有分形特征，变形前后的数字散斑图像之间的分形特征也具有相关性。

Methods: The quality of life of heroin dependent patients before and after MMT was evaluated with Quality of Life for Drug Addicts, and the difference between those improved and unimproved was analyzed with SPSS.

用《药物成瘾者生存质量评定量表》对接受美沙酮维持治疗的海洛因依赖者治疗前后的生存质量进行评价，并对生存质量改善和无改善者进行分析。

A total of 138 cycles of women were examined to compare the subendometrial vascularization pattern before and after hCG administration.

我们接著探讨子宫内膜血流在排卵前后的变化，是否会影响子宫内膜对於胚胎著床时间帯的出现。

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。