The relationship between the relative contents of 5 - hydroxytryptamime ( 5 - ht ) and its receptor and age in days of postnatal rat was studied by using immunohistchemistry and in situ quantitative analysis 为研究大鼠颌下腺5 -羟色胺及其受体的相对含量与日龄的关系，用免疫组织化学法结合原位定量，测定了大鼠颌下腺5 -羟色胺及其受体免疫反应产物的相对含量。
On the basis of special structure of coal fly ash , the reaction products formed during hydration reaction and reaction process are explained , what ' s more , the mechanisms of additives and pressure hydration are also described 摘要以粉煤灰的特殊结构为基础，分析了石灰粉?灰水合反应制备高活性脱硫剂的反应产物、反应过程，以及添加剂和压力水合的机制。
The relative amount of 5 - ht ) a receptor and 5 - ht3 receptor varied with gestation ages and rose markedly with increasing week ages , during6th - 9th week placneta , peaked at 9th - week , delined in 10th and terminal week age . 3 人胎盘绒毛滋养层细胞的5 - ht _ ( la )受体和5 - ht _ 3受体反应产物的相对含量随妊娠周龄的增加而增加，于9周时达到峰值，此后随妊娠周龄的增加而降低； 3
The results indicate that the best annealing temperature is 1100 for 2h . a conclusion has been drawn that when the mol percent of iron is 60 % , the productions of powders and cycle samples have the best magnetic properties 通过对shs粉末样品和磁环的磁性能测试发现：当反应产物中fe的摩尔分数为0 . 6时，粉末样品粒径大小均匀，产物具有较高的比饱和磁化强度和低的矫顽力。
With the other reaction conditions being unchanged , the filtration speed of the reaction production increased about one multiple than the formerly method , and the other performance index of the production had reached the relating standards and specification 在其它反应条件不变的情况下，反应产物的过滤速度提高约1倍，并且产品的其它性能指标仍能达到有关的标准和产品规格要求。
Sequence alignment shows that the fragment of pcr product showed some identities to the masp gene of xenopus laevis , branchiostoma belcheri , the trypsin gene in litopenaeus vannamei and the serine protease gene in aurelia aurita Pcr反应产物基因片段大小为630bp ，序列比较结果表明， pcr克隆产物与爪蟾、文昌鱼的masp基因，虾、水母等的胰蛋白酶基因和丝氨酸蛋白酶基因都有一定的同源性。
It was confirmed that the first reaction layer of tic with very fine crystal grains is due to the reaction ti + sic - tic + si . this reaction is a reaction - controlled one . however , the other reactions in the second step a re controlled by elements diffusion Scs一6sic / ti3ai复合材料的界面反应产物可多达6层，依次为:紧挨着纤维的晶粒细小的tic层、晶粒细小的tissi ;层、等轴晶粒的tic层、 ti3si层、 ti3aic层及ti5si3层。
The formation mechanism of titanium nitride powders by reduction of carbon and nitridation was researched by method of continuous weighing . the possibility to obtain the titanium nitride from this process was asserted by thermodynamical analysis and by the means of x - ray diffraction and sem 用连续称重法研究了钛白粉被活性碳还原氮化合成氮化钛粉末的还原氮化反应机理，并进行了反应的热力学、反应产物的显微结构以及x - ray衍射分析。
The configuration and microstructure of production , the effect of heating temperature and chemistry match ratio on reaction and production , the effect of calcining temperature and time on the changes of production crystal were studied by xrd , tem , dta and microscope 本文通过xrd 、 tem 、差热分析、金相显微镜等手段对所制备材料的结构、组织形貌、点火温度和化学配比对反应现象和反应产物的影响、煅烧温度和煅烧时间对产物晶型转变的影响等方面进行了分析研究。
The processes and characters of synthesis reaction for ni / al and ti / al under the influence of high intensity of pulsating electric current are researched . the characters of organization and structure of products under different parameters such as charge voltage , charge capacitance , pulsating electric current , pulsating amounts and pulsating duration are summarized 对高密度脉冲电流下ni al 、 ti al的反应特点进行了分析，总结了在不同的充电电压、充电电容、脉冲电流、脉冲数量、脉冲持续时间等参数下，反应产物的组织与结构特点。
