螺旋

The formation of tooth face is analyzed based on the theory of original curve and area as well as the logarithmic spiral polar coordinates equation.

提出了一种新型锥齿轮-对数螺旋线齿锥齿轮传动形式，并以基曲线和基曲面滚动原理为基础，结合对数螺旋线极坐标方程，分析了对数螺旋线以及对数螺旋线齿锥齿轮齿面的形成过程，建立其了齿面方程。

The detail contents can be summarized as follows: Using Grassmann line geometry method to analyze joint axes linear dependence in manipulator singular configurations; The manipulator constrain equations are derived base on the reciprocity of twists and wrenches; The null space method is used to obtain the reciprocal screws when singularity occurs.

具体内容包括以下几个方面：用Grassmann线几何方法分析了机器人机构奇异时关节轴线的线性相关性；用螺旋理论推导出了基于力螺旋和运动螺旋表示的反螺旋约束方程式；用零空间理论求出了机器人奇异位形的反螺旋。

We found that during the growth process the double steps first grow separately and the connected by short bridge before tangential growth. After eighth or ninth layer the spiral steps would merge into intact elliptic layers. At the merging point right-handed spiral sources might appear but the left ones always overgrow it which made the whole growth topography looked like left-handed apparently. It indicated that the EAFP molecules has strong ability to adjust itself to adapt the environment. 5. Through various analysis of interactions in the EAFP crystals it indicated that there were 218 residue interactions between 12 symmetry-related EAFP molecules around one EAFP molecule, 18 strong ones and 72 weak ones .

EAFP在低过饱和度下的螺旋生长过程中会出现台阶的合并，从而表现出单-双的螺旋台阶，在小范围扫描中捕获到了这种现象，使得对螺旋生长台阶的合并过程有了更加深入的认识；并且台阶的生长受到沿晶体学b轴方向上的21螺旋对称的控制；当台阶生长至第八到第九层时，螺旋台阶会自动地形成完整的生长层，这充分说明了EAFP分子或分子簇具有良好的自身调节能力，这样在晶体生长过程中，晶体的缺陷减少，晶体质量提高，这也可说明EAFP晶体的x射线衍射能力很强的原因。

Illite fundamental particles showed platy to lath shapes. Platy particles exhibited various spiral growth patterns, i.e. circular, malformed circular, polygonal single unit-cell layer spirals, polygonal parallel step spiral, interlaced spiral patterns, etc.

伊利石单元粒子生长过程中，伊利石单元粒子呈现从板状体到条状体的生长，而板状颗粒又呈现各种螺旋生长图案，有圆形、残缺的圆形、多边螺旋、平行阶梯状螺旋、交错螺旋等。

Results①Make clear of the general principal during the morphologicaldevelopment of the C57BL/6 mouse inner ear and reconstructed the 3D modelof E13 inner ear;②The mature time of many histological structuresassociated closely with the hearing setout of C57BL/6 mouse were madeclear as basilar membrane in D10, scala vestibular and tympanicD4, Cortis tunnel D12, inner sulcus D10, tectorial membrane D10, haircells D12, spiral ganglion neurons D12 and neurofilament in cochlear axisD12-D14.③Outlined the time table and the patterns of the expressionsof those proteins associated with the inner ear development which includedproneural committed proteins, neuronal differential proteins,neurotrophic factors and neuron special proteins.

结果①HE常规染色大体观上了解了C57BL／6小鼠内耳形态发育E8-Da期间的一般规律并且获得了E13的三维立体图像；②获得了各种听功能密切相关的结构的成熟时间点，基底膜(D10)、鼓阶前庭阶(D4)、螺旋器隧道(D12)、内螺旋沟(D10)、盖膜(D10)、毛细胞(D12)、螺旋神经元(D12)和蜗轴纤维(D12-D14)；③完成了前神经决定蛋白、神经分化蛋白、神经营养因子和神经元特异性蛋白等内耳发育相关的蛋白的表达时限表并详细观察了其在内耳各个部位表达随发育变化的特点：④Calbindin在E16以后的螺旋神经元没有表达，但是在scarpa神经元持续表达。

Results①Make clear of the general principal during the morphologicaldevelopment of the C57BL/6 mouse inner ear and reconstructed the 3D modelof E13 inner ear;②The mature time of many histological structuresassociated closely with the hearing setout of C57BL/6 mouse were madeclear as basilar membrane in D10, scala vestibular and tympanicD4, Corti\'s tunnel D12, inner sulcus D10, tectorial membrane D10, haircells D12, spiral ganglion neurons D12 and neurofilament in cochlear axisD12-D14.③Outlined the time table and the patterns of the expressionsof those proteins associated with the inner ear development which includedproneural committed proteins, neuronal differential proteins,neurotrophic factors and neuron special proteins.

结果①HE常规染色大体观上了解了C57BL／6小鼠内耳形态发育E8-Da期间的一般规律并且获得了E13的三维立体图像；②获得了各种听功能密切相关的结构的成熟时间点，基底膜(D10)、鼓阶前庭阶(D4)、螺旋器隧道(D12)、内螺旋沟(D10)、盖膜(D10)、毛细胞(D12)、螺旋神经元(D12)和蜗轴纤维(D12-D14)；③完成了前神经决定蛋白、神经分化蛋白、神经营养因子和神经元特异性蛋白等内耳发育相关的蛋白的表达时限表并详细观察了其在内耳各个部位表达随发育变化的特点：④Calbindin在E16以后的螺旋神经元没有表达，但是在scarpa神经元持续表达。

The uncertain parameters of cylindrical spiral spring fatigue strengthen analysis are analyzed and described as interval variables, and an interval analysis model is established, and the non-probabilistic reliability index of cylindrical spiral spring fatigue strengthen is presented.

分析圆柱螺旋弹簧疲劳强度分析中的不确定性，将圆柱螺旋弹簧设计中不确定参数描述为区间变量，建立圆柱螺旋弹簧疲劳强度非概率可靠性分析的区间模型，提出圆柱螺旋弹簧疲劳强度非概率可靠性的指标。

Firstly, velocity expression of translational parallel manipulator was presented based on the screw theory. Secondly, the actuated screw, the actively unactuated screws and idle screws of each limb were determined according to the reciprocal screw theory. Then, all basic kinematic chains were enumerated by means of the number of limb connectivity and the limbs containing closed-loops were obtained by replacing the passive prismatic joints in the basic kinematic chains with planar closed-loop structures.

首先基于螺旋理论给出移动并联机构的速度表达式，然后根据互易螺旋理论确定出分支的主动螺旋、可动非主动螺旋和惰性螺旋，再依照分支连接度的不同列举出所有可行的基本分支运动链，并通过运动副替换得到分支中含有闭回路结构的运动链，最后利用所综合出的支链按照主动副的配置要求将动平台和静平台连接起来即可实现预期的机构。

Effects of isovaleric acid on the biosynthesis of biotechspiramycin were carried out in order to improve the percentage of isovalerylspiramycin Ⅲ and total isovalerylspiramycin of multi-components biotechspiramycin .

为了进一步提高多组分必特螺旋霉素中异戊酰螺旋霉素Ⅲ和总异戊酰螺旋霉素的含量，本文通过外源添加浓度为0.5 g/L的异戊酸使异戊酰螺旋霉素Ⅲ和总异戊酰螺旋霉素的含量分别比对照提高了38.32%和31%。

The distribution of AQP1 consisted of cells lining the bony labyrinth, fibrocytes lining the endolymphatic duct and sac, cells under the basilar membrane, fibrocytes of the spiral ligament and the spiral limbus, Cortirs organ, inner and outer spiral sulcus, stria vascularis, saccular and utricular wall, and spiral ganglion.

AQP3、7、8的分布类似，在螺旋神经节和包绕膜迷路的组织中均有表达，其中Corti器、内外螺旋沟、血管纹、螺旋神经节表达较强，在螺旋韧带、螺旋缘纤维细胞表达较弱。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。