母体

With the in-situ single-stage self-metallization protocol,surface-silvered polyimide film has been prepared using pyromellitic dianhydride/ 4,4\'-oxydianiline-based polyimide as the matrix and (1,1,1-trifluoro-2,4-pentadionato)silveras the silver precursor.

在原位一步自金属化法中，以均苯四甲酸酐/4，4\'-二胺基二苯醚基聚酰亚胺为基体，以三氟乙酰丙酮银作为银的母体制备出了表面金属化的聚酰亚胺银复合薄膜。

Coli lpdA mutant has the potential to produce pyruvic acid from xylose and mannose.

这些结果对构建以大肠杆菌为母体的模式&细胞工厂&有参考价值。

This may be mostly resulted from the smaller lateral root diameter and the nearer distance between clonal ramet and mother plant or related to the environmental conditions of different population patches or different management measures.

可能是产生克隆分株的根径较小和克隆分株距离母体植株较远造成的，同时也可能与不同种群斑块环境条件的差异或不同的管理措施有关。

So I also have line of sight is not locked in Nabing-hole Salvinia, which fell from the mother of that moment, some hesitation, this will never walk again, this fall will be destroyed?

于是我的视线也便盯上了那柄不打眼的槐叶，它从母体滑落的那一刻，有些犹豫，这一走会不会永不再来，这一落会粉身碎骨？

The p-tert-butyl calix arene (n=4,6,8) were synthesized by p-tert-butyl phenol, formaldehyde aqueous solution as raw materials. Six kinds of calixarene oligomeric surfactants were prepared by etherification of the calix arene with 1,3-propane sultone and 1,4-butane sultone.

以对叔丁基苯酚、甲醛为主要原料合成杯芳烃母体对叔丁基杯芳烃(n=4，6，8)；以1，3-丙烷磺内酯、1，4-丁烷磺内酯为醚化试剂，经Williamson醚化反应，合成出6种杯芳烃基低聚表面活性剂。

Orbital LCH frequently occurs in the supratemporal frontal bone as stem cell precursors of Langerhans cells are located in hematopoetic bone marrow in the frontal bone.

眼眶朗格汉斯组织细胞症最常发生在颞上额骨，因为朗格汉斯的干细胞母体位于额骨的生血骨髓内。

Results At the dosage of 25 mg/kg,AN could induce higher incidence of fetal resorption and death,and decrease the average fetal body weight and le ngth with significant difference(P＜0.05)when compared with neg ative controls.At the dosage of 35 mg/kg,AN could decrease average vital fet us p er litter with significant difference(P＜0.05),and induce chang es of other indexes with highly significant difference(P＜0.0 1).At the dosage of 25 and 35 mg/kg,AN could induce higher teras rate,maternal t eras rate and malformation rate of vital fetus with significant and/or highly s ignificant difference(P＜0.05 or P＜0.01),resp ectively.There existed a dose-effect or dose-response relationship between abo ve indexes and doses.

结果 25 mg·kg-1组死胎率、吸收胎率升高，胎鼠平均体重、体长、尾长减小，与阴性对照组比较差异有显著性(P＜0.05)；35 mg·kg-1组除窝平均活胎数减少，差异有显著性( P＜0.05)，其余各指标与阴性对照组比较差异有非常显著性(P ＜0.01)；25，35 mg·kg-1组畸胎率、母体畸胎率、活胎畸形率升高，与对照组相比差异有显著性和/或非常显著性(P＜0.05或P ＜0.01)，且有明确的剂量效应或剂量反应关系。

The accurate theoretical heats of formation for 56 derivatives are obtained through designing the isodemic and isogyric reactions with the tetrazole parents as the reference compounds.

通过设计等键和等电子对反应，以四唑母体为参考物，首次精确地报导了系列56个四唑衍生物的理论生成热。

Methods On the basis of bioisosterism principles and by the method of substructure link, we modified the parent structure of 1, 3, 4-thiodiazole and synthesized a new kind of thiadiazole Schiff base. The structure of the new thiadiazole Schiff base was confirmed by infrared spectrum, nuclear magnetic resonance hydrogen spectrum (1HNMR) and elemental analysis.

利用生物等排原理和亚结构连接法，对噻二唑母体进行修饰，设计并合成了1个新的噻二唑席夫碱，目标化合物的结构经红外光谱、核磁共振氢谱和元素分析加以确证。

The rubbed surface was analyzed with XPS and EPMA, the results shown that the element S, N were as thiadiazole and imidazoline compounds in the rubbed surface film. The tribological properties of surface modified TiO〓 nanoparticles as water base lubrication additive was studied firstly.

用XPS、EPMA对摩擦后的磨斑表面进行了表面形貌，表面膜元素组成，及表面膜中的N〓、S〓电子结合能进行了考察，并与相应母体环化物的N〓、S〓进行了比较，发现摩擦后，磨斑表面膜中的S、N元素，主要是以噻二唑及咪唑啉的形式存在。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。