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We reviewde their documents and exam all patients. The examination include refraction,strabismus ( exophoria was noted down with negtive,and esophoria with postive ),eye axial length,postive relative accommodation and negative relative accommodation.

回顾以往资料并对两组试验对象进行检查,检查项目包括屈光度、眼轴长度、远近隐斜度和40cm处加+1.00Ds时的隐斜度(外隐斜用负数记录,内隐斜用正数记录)、AC/A率及正、负相对调节等视光参数。

Selfconjugate matrix, skewselfconjugate matrix, perselfconjugate matrix, skewperselfconjugate matrix, centrosymmetric matrix, skewcentrosymmetric matrix, bisymmetric matrix, and skewbisymmetric matrix over a ring with an involutorial antiautomorphism are defined. Significant criteria for matrices to be bisymmetric and skewbisymmetric are obtained.

在具有对合反自同构的环上定义了自共轭矩阵,斜自共轭矩阵,广自共轭矩阵,斜广自共轭矩阵,中心对称矩阵,斜中心对称矩阵,双对称矩阵和斜双对称矩阵,建立了双对称矩阵和斜双对称矩阵的重要判定定理。

Authors suggest that uranium ore formation occurred after the appearance of the above subsidiary tectonic units, and sandstone bodies of the Ⅱ,Ⅲ,Ⅳ,Ⅶ cycles, Shuixigou Group in the southern syncline, and sandstone bodies of the Ⅰ,Ⅱ,Ⅲ,Ⅴ cycles, Shuixigou Group, as well as sandstone bodies of Xiaoquangou Group in the northern monoclinal zone, they are ...

文章认为铀成矿作用发生在这些次级构造单元形成之后,且具有找矿前景的是南部向斜带水西沟群第Ⅱ、Ⅲ、Ⅴ、Ⅶ旋回砂体和北部单斜带水西沟群第Ⅰ、Ⅱ、Ⅲ、Ⅴ旋回砂体及小泉沟群砂体。从容矿层位连续性、分布面积、砂体特征及层间氧化带发育特征等成矿条件看,北部单斜带铀成矿条件和找矿前景均优于南部向斜带。

In this paper, draw the idea of beam unit, the bias along the vertical box is divided into a number of oblique beam. On the basis of analysis of the displacement, through positive and oblique coordinate transformation relations, and directly built on the oblique coordinate system to describe the methods of displacement unit space. With potential energy principle is derived in oblique beam element stiffness matrix and the establishment of the finite element formulation. The preparation process of the finite element analysis is used to verify the structure of bias.

本文吸取梁段单元的思想,将斜交箱梁沿纵向划分为若干斜梁段,在位移分析的基础上,通过正、斜交坐标转换关系,直接建立在斜交坐标系内描述单元空间位移的方法,用势能驻值原理推导斜梁单元刚度矩阵并建立其有限单元列式,利用编制的有限元程序进行斜交结构的分析。

Based on it, the research content of this dissertation has been determined. Tuan Shan River Bridge is selected as an example and APDL is used to analyze the elastic properties. After calculating the internal force influence surface of assembly skew hollow slab bridge, the internal force-controlling section is attained; the transverse distribution of internal force is studied and the transverse distribution coefficient is parametric analyzed. Based on the results, relation formula of transverse distribution coefficient between skew and perpendicular bridges are fitted. Practical calculation method for the internal force calculation of assembly skew hollow slab bridge is offered. Some conclusions are drawn from comparing and analysing the internal force, bearing reaction and deformation of both assembly and monolithic skew slab bridges.

本文对装配式斜交空心板桥的发展现状进行了综述,从此出发,确定了本文的研究内容,以团山河大桥为工程背景,采用ANSYS 提供的参数化语言APDL,对装配式斜交空心板桥弹性特性进行全面分析,计算了装配式斜交空心板桥的内力影响面,得到内力控制截面;同时计算了内力的横向分布影响线和横向分布系数,并对内力横向分布系数进行了参数分析;基于参数分析的结果,拟合了装配式斜交空心板桥与对应正交桥内力横向分布系数的关系式,为装配式斜交空心板桥的内力计算提供了实用计算方法;对比分析了装配式斜板桥与整体式斜板桥的内力、支座反力以及变形特点,得出了一些有益结论。

Whipstock is put down in dense formation of Changlongshan group in Qingbaikou system, entering buried-hill formation by milling cone window sidetracking, oblique reducing, stabilizing and increasing of sidetracking. 152mm whipstock is chosen reasonably in construction cooperated with wireless inclinometer, which brings one-time seating and sealing success. Gabby cemented carbide is optimized as milling cone window sidetracking in 154mm XZ series of main cutting edge, which brings one-time success.

选择在清白口系的长龙山组致密地层(2617m)下入斜向器,使用铣锥开窗侧钻、侧钻降斜、稳斜、增料进入潜山地层,在施工中合理选用152mm斜向器,配合使用无线随钻测斜仪一次坐封成功,优选碎硬质合金作为主切削刃的154mmXZ系列铣锥开窗侧钻一次成功。

Orange-spotted grouper is a benthic protogynous marine fish with sex inversion. It is one of the most important culturing fish in the southeast of Asia. As in other vertebrates, its growth is mainly controlled by growth hormone . Few data are available concerning the regulation of GH in grouper. In this paper, the regulation of growth hormone release from pituitary of orange-spotted grouper and its mRNA level was determined by radioimmunoassay and RNase protection assay.

中文题名斜带石斑鱼生长激素分泌及其基因表达调控的研究副题名外文题名 Regulation of growth hormone and its gene expression in orange-spotted grouper,Epinephelus coioides 论文作者冉雪琴导师林浩然学科专业水生生物学研究领域\研究方向学位级别博士学位授予单位中山大学学位授予日期2003 论文页码总数140页关键词生长激素基因表达石斑鱼馆藏号BSLW /2003 /Q959 /39 应用分子克隆技术,构建了斜带石斑鱼生长激素(Growth hormone,GH)基因重组质粒,在大肠杆菌细胞中获得高效表达,亲和层析纯化斜带石斑鱼GH融合蛋白做为抗原,免疫家兔制备特异性抗体,通过酶联免疫实验、放射免疫测定、离体脑垂体静态孵育和液相杂交/核糖核酸酶保护试验及化学发光检测技术,研究了斜带石斑鱼GH分泌及其mRNA表达的调控机制,对于斜带石斑鱼的生长、繁殖、人工养殖等具有重要意义。

In this thesis, the influence of column force, joint hoop reinforcement, and repeat load on the stress and sheer bearing capability of inclined pressure bar is analyzed utilizing finite element software. In the case study, the column axial force's influence on the inclined pressure bar's equivalent width, stress and sheer bearing capability of RCFEN is obtained by changing the column force when modeling the RCFEN with ANSYS. In the former model, the joint hoop reinforcement influence on the equivalent width inclined pressure bar and the strength of RCFEN is achieved by changing the quantity of joint hoop reinforcement; the inclined pressure bar's equivalent width and the strength variation of RCFEN under cyclic load are gained by applying low frequency cyclic load on the inflection point of column and the middle of beam.

针对上述算例中的框架外节点采用ANSYS进行建模,运用有限元软件分析了柱轴力、节点箍筋、反复荷载对外节点斜压杆承载力、抗剪承载力的影响:改变柱轴力,研究了柱轴力对斜压杆的等效宽度、框架外节点斜压杆承载力、框架外节点斜压杆抗剪承载力的影响;在上述模型中,改变节点箍筋的数量,分析了节点箍筋对斜压杆的等效宽度、框架外节点强度的影响;在上述模型中,在柱反弯点和梁中点均进行低周反复加载,讨论了在反复荷载作用下,框架外节点的斜压杆的等效宽度、框架外节点强度的变化情况。

According to the dynamics analysis of the cotton sliver coiling process,by considering the minimum friction of cotton sliver caused by screwy pipes as objective function the design of screwy pipes of can coiler is explained based on the theory of the variational direct-method.

对棉条圈条过程定量地进行了动力学分析,以棉条所受曲线斜管摩擦力最小为目标函数,基于变分问题直接法原理设计出圈条盘螺旋形曲线斜管。这种螺旋形曲线斜管充分利用圈条盘的转动对棉条产生的离心力甩摆作用,使棉条所受曲线斜管摩擦力较小,从而使出条更顺畅;在一定程度上降低了圈条盘螺旋形曲线斜管堵眼频率与条筒乱条几率,使其更适应现代并条机生产高速化的要求

The arrangement of braces is X type. The braces is H175x175x11x7.5, same as the second test of TCBF. Because of additional knife plates, the braces length in this test is a little shorter than the second TCBF test. The gusset plate design use the UFM instead of ellipse bending design method.

试体高6.66公尺,宽6.7公尺,斜撑排列形式为大X形,斜撑尺寸为H175x175x11x7.5,与第二次TCBF试验采用之斜撑相同,但本研究因需配置额外的连接板而使得斜撑长度略短,接合板则采用规范建议之UFM进行设计,与第二次TCBF椭圆形凹折设计不同。

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推荐网络例句

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。