顶

Cylinder, the cylinder sets of radial a surplus deformation of the cylinder sets a great impact on the cylinder liner reduced radial a surplus amount to reduce the deformation of the cylinder sets, the top surface of the body decreases roughness, but it will increase the body on the plane cylinder only mouth the roughness ; Preload reduced cylinder head bolt deformation of the cylinder liner little effect, the body can reduce the top surface roughness and cylinder body on the plane I ended roughness; Shen appropriate reduced cylinder head bolt hole deep can reduce the deformation of the cylinder sets, but will cause the body and the top surface roughness on the cylinder body only I roughness increases Plane .

工作工况下，对于第2缸来说，气缸套径向过盈量对气缸套变形影响很大，减小气缸套径向过盈量，有利于减小气缸套的变形，减小机体顶面不平度，但会增大机体上缸套止口平面的不平度；减小缸盖螺栓预紧力对气缸套变形影响很小，可减小机体顶面不平度和机体上缸套止口平面的不平度；适当减小缸盖螺栓沉孔深可以减小气缸套的变形，但会造成机体顶面不平度和机体上缸套止口平面不平度的增大。

In allusion to the holdbacks which often come forth in pipe-jacking construction,the practicing experience of many pipe-jacking operators is summed up and some new settling methods are put forward in the text.

针对顶管施工中经常出现的一些障碍，总结了顶管工作者的实践经验，提出了一些新的解决方法，并阐述了障碍的许多预防措施，希望对以后的顶管施工实践有所帮助。

Stop retarders are used at the tail of hump shunting yard instead of putting skates on the tracks and operating the hand brake by men for stopping railway cars and preventing railway cars from running off.

宝丰车站调车场尾部应用停车顶代替人工上鞋和拧手闸使车辆停车防溜，文章详细介绍了停车顶布顶数的确定、布顶位置和布顶方式及安装停车顶以后的使用效果

I For the ejection of certain types of circular mouldings.

塑件用中空的顶杆顶出的方式称之为顶管。

The conclusion is that the extent of the zenith blind zone was restricted by three parameters: maximum azimuth angular velocity of tracking mount, flight level and airspeed of the target. In astronomical coordinates (reference mark is north latitude 43.9 ), analyzed is the effect of azimuth angular velocity, acceleration and altitude angular velocity, acceleration etc. Some formulae were given to compute all correlative quantities.

在观测坐标系中推导出确定天顶盲区理论范围公式和满足过天项跟踪条件的关系式；在天文坐标系中以长春卫星观测站(北纬43.9°)作为计算基准，分别讨论了方位、俯仰方向的角速度、角加速度等对天顶盲区的影响，在理论分析上为解决过天顶跟踪问题打下了基础。

Wind the wire rope from the two guiding block of the pillar, pass through the fall block, fix on the pillar or on the pulling shaft axle of weight limit appliance

4.4.4将卷扬机上钢丝绳从顶梁的两只导向滑轮上绕过，穿过吊笼上的动滑轮，固定在顶梁上（或顶梁上悬挂的重量限制器的拉杆轴上）。

The thermal and quasi-material surface definition of the tropopause are applied in order to derive the height separating the troposphere to the stratosphere.

使用了两种对流层顶的定义来区分对流层和平流层：热力学对流层顶和准物质面对流层顶。

This thesis has studied Levy system Cable dome's tension and simulated 24 tension schemes by using finite element analysis software.

本文所完成的Levy体系索穹顶结构的结构选型，节点设计，张拉方案研究是对现有索穹顶结构理论研究的有益补充，并为索穹顶结构在我国的工程应用提供参考。

The text obtains some data that caving span of immediate roof is 30m, caving span of main roof at first weighting is 42m and caving span of main roof at periodic weighting is 14m. Mining influence range is determined about 40m through numerical modeling, namely about three advance pillars were in the range of mining influence.

利用数值模拟得出煤柱采场直接顶的垮落步距为30m，老顶的初次来压步距为42m，老顶的周期来压步距为14m；通过模拟超前支承压力，确定了采动影响范围约为40m，即采场超前的三个煤柱都在影响之内。

Then after closure, taking steel perimeter beam and perimeter beam rail as slip base, in order of symmetrical balance, hoisting each steel "leaf" respectively up to the installation platforming of steel leaf, again by utilizing the steel perimeter beam, perimeter beam rail and hydraulic thrusting slip equipment, performing the installation for the eight steel leaves until they are closed together.

施工中采用了&一点吊装、平面滑移&的技术进行安装，即采取同一固定点吊装，先将分段钢环梁利用环梁轨道和液压顶推设备滑移，分段逐步滑移和顶推、逐步拼接，直至钢环梁合拢。将合拢后的钢环梁和环梁轨道作为滑移底座，按对称、平衡的顺序将每片钢叶瓣分别吊装至安装平台上，再次利用钢环梁、环梁轨道和液压顶推滑移设备，将8片钢叶瓣逐步安装到位。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。