双叶的

But in the + moiety, the three benzimidazole rings shared the whole space equally, the dihedral angel among them is about 120°, just like three fan blades of an airscrew, the molecular structure appear gear-like shape.

X-射线单晶衍射测试、红外、紫外等方法确定了三(2-苯并咪唑亚甲基)胺的Fe和Co配合物的结构，由晶体结构发现金属配位情况不同、配合物在结构上存在着差异，Fe为八面体构型，而Co为三角双锥构型；其次，两配合物中的苯并咪唑环间夹角不同，配合物中包含N2和N4的两个苯并咪唑环间夹角仅为9.41(0.11)，几乎构成一个平面，呈蝴蝶形；后者Co三个苯并咪唑环几乎平分了整个空间，它们之间的夹角约为120，呈三扇叶螺旋桨式构型，为齿轮形。

A new arrow-shaped radiator grille - with twin chrome louvres on the S65 - is an effective status symbol on a car that commands respect.

一种新的箭头形的散热器格栅-双铬百叶窗上S65 -是一种有效的身份象征的汽车，命令尊重。

The fractional anisotropy values of white matter in schizophrenia patients and normal controls were measured respectively in frontal and the splenium of corpus callosum. Independent-samples t-test for non-paired data was used to test the differences between schizophrenia arid controls for FA values. Correlated analysis was applied to reveal the correlations between FA values in frontal and the PANSS scores.

对22例精神分裂症患者和20例健康志愿者进行脑部DTI扫描后，测量双侧额叶和胼胝体压部的各向异性分数值，应用成组t检验对精神分裂症患者和正常健康对照组的相应区城进行比较，并用部分相关性检验对精神分裂症患者脑中各部位相应FA值与PANSS量表评分之间的关系进行统计。

Results All cases showed a bilateral symmetric changes in the posterior periventrieular white matter,MRI signals were longish T_1 on T_1WI and hyperintensity on FLAIR,which appears as butterfly with splenium of corpus callosum infiltration.

结果：MR扫描7例均显示双侧脑室三角区周围白质内对称分布的异常信号，主要位于枕、顶、颞叶，胼胝体体部、压部，T1WI呈稍长T1信号，FLAIR像示高信号，呈典型的&蝶翼状&，1例于视放射区呈对称性的长T2信号。

The identification of phylogenetic relationships among HSF proteins in these species is a fundamental step to unravel the functionality of new and yet uncharacterized genes belonging to this family.

同时代表了热激转录因子基因家族在包括单子叶植物和双子叶植物的被子植物中的主要的进化谱系。在此基础上作了进化分析。

The relationship between displacement of double diffracting gratings and the intensity of Moiré signal is studied by applying theories of physics optics and Fourier optics, a mathematical model of linear displacement measure based on the Moiré signal is established, and computer-simulated pattern changes are obtained.

应用物理光学和傅立叶光学理论，分析了双级光栅衍射时的相对位移与激光莫尔信号强度的关系，建立了基于激光莫尔信号的精密位移测量数学模型。

Foliar sprayed with 500μmoll〓FePS has showed better regreening effects in dicots compared with root supplied with 1μmoll〓〓FePS.

对双子叶植物而言，叶面喷施FePS的效果要好于根施1μmolL〓的FePS，而对单子叶植物根施的效果要明显好于叶面施用。

The ANNs models of the periodic defected ground structures and a novel combinatorial nonperiodic defected ground structures with the characteristic of double stop band have been developed in this paper. The structure sizes of DGS and the frequencies are defined as the input samples of ANNs, the parameters of transmission coefficient calculated by FDTD method are sampled and defined as the output samples. For the PDGS with biggish structure sizes the transmission coefficients have the tiny dither owing to abnormal disturbance and the training samples have been smoothed by the least square method and five-spot triple smoothing method.

本文采用神经网络对周期性缺陷接地结构和一种新型的具有双阻带特性的组合式非周期性缺陷接地结构进行分析建模，将其结构尺寸和频率作为输入样本，对FDTD法计算出的传输系数参数进行抽样并将抽样结果作为输出样本，然后采用贝叶斯正则化算法对神经网络进行训练。

In order to study the flow characteristics inside the double-channel impeller, a testing pump was designed and produced according to the special requirements for PIV measurement with two different impellers, i.e., the double-channel impeller and the two-blade impeller.

为研究双流道叶轮与普通叶片式叶轮的内部流动区别，设计制作了满足粒子图像测速仪测量要求的模型泵，模型泵的叶轮有双流道和双叶片2种形式。

Recently , TFT-LCD(Thin-Film Transistor Liquid crystal Display) is very important to major industries in Taiwan . In order to of satisfy the panel manufacture industry requiring large sizes of panel of cell processes , the conventional processes will be replaced with new technology of cell processes : One Drop Filling (Abbreviation:ODF) in the future . It is important to develop UV/Heat curable resin.In this investigations , we focused on Epoxy Acrylate Oligomer which are major components of ODF Sealant materials. The films are exposed to UV by different times , then the absorption peaks of ethylene and epoxy function group were idendifed with Attenuated Total Reflection-Fourier Transform Infrared Spectroscope to discuss curing ratio and reaction condition .

实验中，将探讨以紫外光和热双效硬化型树脂主要组成为寡聚物为主的ODF封胶材料，将其涂布在玻璃基板上形成薄膜，经过紫外光不同曝光时间及在恒温120℃下不同加热时间，再以衰减全反射式傅立叶转换红外线光谱仪(Attenuated Total Reflection-Fourier Transform Infrared Spectroscope)分析乙烯基和环氧基相关官能基在吸收图谱的变化，探讨在不同环境条件下ODF封胶材料硬化反应程度以及分析鉴定的要素。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。