双特征的

It was demonstrated that both anthracene and pyrene, especially the former, are bimodally distributed.

结果表明，两者都呈双峰分布，其中蒽的双峰特征尤为典型。

On the basis of twin-roll thin strip continuous casting experiments and solidification structure characteristic analysis of thin strip and combining with the simulation results of effects of technological parameters, the forming mechanism of solidification structure zone (especially equiaxed crystal zone) on 1Crl8Ni9Ti stainless steel twin-roll thin strip was investigated.

在双辊薄带连铸实验和薄带凝固组织特征分析的基础上，结合对薄带凝固组织区的模拟预测结果，研究了1Cr18Ni9Ti不锈钢双辊薄带凝固组织区的形成机理。结果表明：1Cr18Ni9Ti不锈钢双辊薄带凝固组织中的等轴晶区不但在凝固类型为半固态时形成，在轧制或理想型时也能形成。其形成机理为，熔池中悬浮游离晶体的沉积、聚集以及在枝晶生长前沿的长大和薄带离开二铸辊最小间隙后，薄带/空气界面换热系数骤然降低抑制了柱状枝品的生长，并促使薄带中部未凝固熔体中游离晶体的择优长大

According to the Marr's visual theory, a novel face image presentation model, dual attribute graph , is put forward in the thesis. Each node of the graph has two attributes, local principal component coefficient and Gabor coefficient. So the presentation of face image can be converted from gray level to more high level.

根据Marr的视觉表示理论，本文提出了新的人脸图象表示形式---双属性图表示，属性图中每个节点有两个属性特征，局部主成分系数特征以及Gabor系数特征；从而将人脸图象的灰度级表示，转化为更高一级表示。

Indicating that androgyny theory in Chinese literature sector is affected very much by Virginia Wolf's, but Cixous's is different from the former and claims that it does not only include and accept differences but also another gender, and in the end concluding that the bisexuality of Cixous's is the characteristics of composite diversity, fluent variability, imaginativeness, subversiveness, no standard, transcendence and so forth.

指出国内的"双性共体"论受伍尔芙的影响较大，而西苏的"双性共体"是"既不排除差异，也不排斥(来源：ABC论文a8a8a8网www.abclunwen.com)另一性别"，与伍尔芙的"双性共体"是有差异的，并得出结论，其"两性性"具有复合多元性、流动多变性、质感性、颠覆性、无规范性和超越性等特征。

By means of sem, it is found that in the portland cement clinker with high quality, the alite take the shape of trigonalrhombohedron,and belite shows the shape of irregular ovum, also with the parallel and cross twin-crystals.

借助于扫描电子显微镜发现优质硅酸盐水泥熟料中A矿呈复三方偏三角体形貌特征；而 B矿则呈不规则的浑圆状，并且从外层可看到平行双晶和交叉双晶共存。

The preparation method is characterized in that:(1) at minus 10 DEG C to 10 DEG C, a chloroauric acid solution with a certain concentration is added into a nano-Pt/C catalyst by ultrasonic or stirring mixture and the atomic ratio of Pt to Au is controlled between 18:1 and 5:1;(2) a small amount of monohydric alcohol or dihydric alcohol or trihydric alcohol of C1-C3 is added and is stirred at minus 10 DEG C to 10 DEG C for 10 min to 5h, so as to prepare the carbon-loading Pt-Au bimetallic nano electro-catalyst;(3) if necessary, the catalyst obtained by the step (2) is treated for 0.5 to 4h at high temperature ranging from 100 DEG C to 700 DEG C in the inert or reducing atmosphere, so as to adjust and control the grain size of the Pt-Au bimetallic nano electro-catalyst.

本发明涉及了一种高稳定性碳载Pt-Au双金属纳米电催化剂的制备方法，其特征在于：(1)在-10～10℃中，将一定浓度氯金酸溶液加入到纳米Pt/C催化剂中经超声或搅拌混合，控制Pt∶Au的原子比为18∶1-5∶1；(2)添加少量C 1 -C 3 的一元、二元或三元醇类，在-10～10℃下搅拌10min-5h，制备了碳载铂金双金属纳米电催化剂；(3)视需要，可将步骤(2)得到的催化剂在惰性气氛或还原气氛中经100～700℃高温处理0.5-4h，可调控Pt-Au/C双金属纳米催化剂的粒径。

Results The CT findings of pulmonary distomiasis included:(1)unilateral or bialteral mottling,patchy and nodular shadows with hazy border.

结果 肺吸虫病肺内CT表现包括：(1)单侧或双侧肺野出现斑片状、结节状影，边缘模糊，部位、状态易变，少数病例可见特征表现的&隧道&征；(2)肺门影增大，肺纹理紊乱或病灶呈成簇状窟穴状影；(3)胸腔积液常见，特征表现为交替性胸腔积液和心包积液。

Notably, compounds 12–14 can be described as a 3D open–framework with nano–channels, compound 15 can be described as a 3D open–framework with double helical channels, while compound 16 can be described as a 3D heterochiral coordination polymer with double helical channels, which can be obtained by spontaneous resolution from the racemic phosphonic acid.X–ray powder diffraction analysis shows that compound 16 is a pure phase. Surface photovoltage spectroscopy of compound 16 indicates that it possesses positive SPV response in the range of 300–600 nm and shows p–type semiconductor characteristic.

值得注意的是，化合物12-14为具有一维纳米孔道结构的三维开放骨架结构，化合物15是具有双螺旋孔道的三维开放骨架结构，而化合物16是外消旋的有机膦酸配体通过自发拆分而形成的具有双螺旋孔道的多手性三维开放骨架结构。X-射线粉末衍射分析表明化合物16为纯相；化合物16的表面光电压光谱分析中，在300-600nm范围内有3个正的光(来源：ABC论文12网www.abclunwen.com)伏响应带，表明它具有p型半导体的特征；化合物16的诱导表面光电压谱进一步确定它的p型半导体的特征；磁性研究表明，化合物16中两Mn原子之间存在弱的反铁磁相互作用。

The experimental results show that: DNA of normal gastric mucosa has stable phosphate backbone; Since the peak intensity at 1090 cm^(-1) is lower than that at 1050 cm^(-1), phosphate backbone in DNA of intestinal metaplasia becomes unstable, while the rest spectra peaks are similar to those in normal gastric mucosa; In terms of adenocarcinoma DNA, double peaks at 1090 cm^(-1) whose intensity are higher than 1050 cm^(-1), are observed, which indicates that DNA chain is broken and re-forms a double stabilized phosphate backbones. In addition, peaks at 950 cm^(-1), 1010 cm^(-1), 1100~1600 cm^(-1) also exhibit obvious difference compared with normal gastric mucosa, which shows that deoxyribose and bases are changed due to broken of DNA.

实验结果表明，胃粘膜正常组织DNA中有稳定的磷酸骨架；肠化组织基因组DNA拉曼特征峰在1090 cm^(-1)处谱峰强度低于1050 cm^(-1)处谱峰强度，表明其磷酸骨架变得不稳定，其它位置的谱峰与正常组织相似；腺癌组织基因组DNA拉曼特征峰在1090 cm^(-1)附近出现双峰，其相对于1050 cm^(-1)处谱峰强度更强，提示DNA有可能出现断链并再次形成了稳定的磷酸骨架，在950 cm^(-1)、1010 cm^(-1)、1100~1600 cm^(-1)波段的特征谱峰与正常组织DNA相比变化也较大，说明脱氧核糖和碱基可能由于DNA断链也随之改变。

In order to study water characteristics for clay soils in north and south regions, Lou soil in the north and Red soil in the south were chosen. The retention curves and saturated hydraulic conductivities were measured and infiltration experiments were conducted by double-cycle type of infiltrator.

为了研究南北方粘质土壤的水分特征，选择北方塿土和南方红壤典型粘土，测定其持水特征和饱和导水率，采用双环入渗仪进行入渗试验。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷