双孔的

In this paper we combining connecting tunnel project of Subway Line 4 at Xidan-lingjing bystreet in Beijing. To aim at the difficulties of building large-span connecting tunnels in the fine sand layer, through roads and underground pipelines, construction nearby buildings and other project difficulties. Using theoretical analysis, numerical simulation, field tests and other research methods to comprehensive and systemic research the stratum deformation mechanism and process control techniques of shallow excavation method, and a series of results were obtained. Firstly, use the stochastic media theory to analyze the stratum deformation mechanism, concretely analyze the analytic equation of surface horizontal displacement and deformation which were caused by the excavation of single-hole and double-hole tunnel, and further discussion on ground settlement, vertical deformation, surface horizontal displacement and horizontal deformation. Analyzing the main influence factors of surface displacement, and combined with practical work to proof the theory which was applied to shallow buried single-hole tunnel in fine sand layer was scientific.

本文结合北京地铁四号线西单～灵境胡同渡线隧道工程，针对在粉细砂地层中修建大跨渡线隧道，下穿道路和地下管线，临近建筑物施工等工程难点，利用理论分析、数值模拟、和现场监测等多种研究手段，对浅埋暗挖隧道地层变位机理及控制技术，深入地进行全面和系统的研究，并取得以下成果：(1)引入随机介质理论，对地层变位机理进行了分析，具体分析了单、双孔隧道开挖引起的地表位移及变形的解析方程，并深入探讨了地表沉降、垂直变形、地表水平位移和水平变形的特点，同时分析了影响地表位移的主要因素，并结合工程实例，佐证该理论应用于粉细砂地层浅埋暗挖单孔地铁隧道的科学性。

Spore spray and hype double holes injection methods are used to evaluation some snap bean germplasms resistance to anthranthranose and Fusarium root rot during seedling.7 varities are high resistence to anthranthranose and 1 variety is high resistanee to Fusarium root rot.

采有喷雾接种法和下胚轴双孔注射法分别对部分菜豆种质资源进行炭疽病和枯萎病的抗性的苗期鉴定，从所供试的材料中筛选出高抗菜豆炭疽病材料7份，高抗菜豆枯萎病材料1份，为抗病育种奠定了基础。

The lower leg is represented by the medial crura whereas each upper leg consists of a lateral crural complex based bilaterally on the piriform aperture.

下方的腿代表的是内侧脚，同时上方两条腿则代表双侧的梨状孔上的外侧脚复合体。

In this paper, incising blasting engineering in granite row stone exploitation as the research object, in order to analyze the fracturing mechanism principles of V-shaped notch blasting and the influence of blasting parameter changing to V-shaped notch blasting effect, the elastic-plastic isotropy and multi-notched hole of plane strain model is set up. Dynamical finite element analysis software ANSYS/LS-DYNA is applied to calculate dynamic stress distribution and its change rule of rock around notched holes and between two holes, and dynamic fracturing mechanism is analyzed with fracture mechanics theory.

文章以花岗岩荒料开采中的切割爆破工程实践为研究对象，为分析V形刻槽爆破成缝机理及爆破参数改变对刻槽爆破效果影响等内容，建立了各向同性脆性材料的多刻槽孔准平面应变模型，以显式动力分析有限元程序ANSYS/LS-DYNA为模拟运算工具，详细计算了在动载作用下槽孔周围及双孔连心线上岩体的动态应力分布与变化规律，并运用断裂力学理论分析刻槽爆破动态成缝机理。

By cooperating the two-model method with parallelogram frame in this paper, the curve of two crossed cylinders with their axises in a state of vertical can be easily and accurately realized, and the mechanism withdrawn from the method can be applied directly to the hole gas-cutting on high pressure capsules.

文摘：采用双靠模法与平行四边形机构的组合，可简易、准确地实现轴线垂直的两圆柱体相贯线轨迹的复现，其原理可直接用于压力容器上圆孔的气割。

Before conducting the study, students believed that Heat could not influence gas and liquid volume.Matter didn't have thermal expansion. Metal ring's diameter will shrink after heating. The melting quantity of salt is much quicker and faster than sugar in the same temperature or water. Only metals can conduct heat, but not wood, glass, plastics. The quantity of heat is by steam way disappearing.

一、学童对「物质与热」的迷思概念有：(1)「热对气体、液体体积不会有影响」的概念，(2)听过热胀冷缩的语词，但是对原因不明了，(3)金属双圆环加热后，内环孔的口径会变小，(4)同温度且等量水，盐的溶解量比糖多、也比糖快；(5)木材、塑胶、玻璃不会传热，金属才会传热；(6)以为热量是以水蒸气方式散失，(7)冷气机应安装在高处，冷房效果较佳；(8)误认为金属是良好的保温材质。

METHODS: Sixty patients undergoing elective unilateral TKAunder spinal anesthesia received in a randomized, double-blindmanner a femoral, obturator, or sham nerve block at the endof surgery.

60名在脊麻下择期行单侧膝关节成形术的患者，在手术结束后接受随机双盲的股神经阻滞或闭孔神经阻滞或未作神经阻滞的临床研究。

Now 30% lighter than their original model, these longstanding force veterans feature breathable mesh linings, fully cushioned removable insoles with shock-absorbing pads and slip-resistant Ultra-Lites Rubber Outsoles — so when you have to put your foot down, it stays there.

无论是拉链和鞋带孔，还是带防护功能的靴头，整双鞋子的所有部分都采用特殊的非金属材料，将不能被电子设备所侦测到

During grain storage, ALP was divided into as fumigating pharmaceutical after sealing in order to store at low dosage. When the gas composition mensurated, using the rubber stopper which with double hole to get back PH3. In the gain bulk this method can retain the concentration of PH3, extend the period of validity, disinsection and sterilization, ensure safety of grain stored .

粮食在储藏过程中，粮堆密闭后投入磷化铝片剂进行低剂量保管，在测定密闭粮堆内的气体成分过程中，用双孔橡皮塞将PH3气体回收到粮堆内，使粮堆内更好地保持PH3浓度的含量，延长其有效期，起到杀虫杀菌的作用，达到安全储粮的目的。

Results: Scans of 3D-FIESTA sequence combined with post-procession could precisely show labyrinth, nerves and vessels in inner ear and internal auditory canal, as well as the relationship between nerves and vessels around. As to the ability to evaluate nerves in IAC, MPR and VE was superior to MIP; As to the ability to display semicircularesin and cochlea, MIP was the same as double oblique MPR; It was important for VE and oblique sagittal MPR to display the position of foramina nervosa of IAC.

结果：3D-FIESTA序列扫描结合MPR、MIP和VE重组对内耳迷路及内听道内神经及血管显示清晰，能够清晰显示两者之间的关系，MPR和VE重组对神经的显示优于MIP重组，MIP对半规管显示与双斜面MPR并无明显差别，VE和斜矢状面对于内听道内各神经孔的位置关系具有重要意义。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。