内旋转

And the "three-factor quadratic regression orthogonal rotary method" was adopted to study mixing performance of the mixer,after the machine had been designed and trial-produced. It was showed that the optimum technological parameters for mixing time, block coefficient and rotary speed of the paddle shaft were 180 s, 0.75 and 56 r/min, respectively. At the same time, the remains in the bin was little (0.015%). The effe...

为了提高双轴桨叶混合机的混合性能，采用二次回归正交旋转组合试验，对设计样机进行混合均匀度及机内残留率的试验研究，得出了其工作参数的合理组合：混合时间为180s，充满系数为0.75，桨叶轴转速为56r/min；机内残留量极小(约为0.015%)，满足其作为配合饲料生产，尤其是预混合饲料生产的工艺要求，也为进一步改进设计提供了依据。

On the basement of conventional direct fan-beam reconstruction, this paper gives a newly improved algorithm-"fast filtering-backprojection". This method utilizes the symmetrical circle geometry to sample projection data, and reconstructs image on the Polarcoordinate firstly, then translates this reconstructed image onto the cartesian coordinate system with two interpolating operations so that the computer can show the result image on the VGA screen. This algorithm rebates the calculating backprojection greatly, and shortens a few times of reconstructing time than same kinds of means. With the size of image enlarging, the reconstructing time abates with 2 exponent times. In addition, according to the idea of parallel-beam, we rearrange the fan-beams and reconstruct image using parallel-beam method fastly. The rearranging constraint condition is given here.

本文首先在传统的扇束直接重建方法的基础上，提出了一个改进的快速滤波反投影重建算法，它利用旋转采集投影数据的圆周对称的几何关系，先在极坐标系统内进行图象的重建，然后通过两次内插运算再将图象转换到计算机显示方式下的笛卡尔坐标系中去，该方法将以往的直接重建方法中的反投影时所需的运算大大降低，并将重建时间比同类方法缩短了几倍，而且随着重建图象的尺寸的增大，重建时间以2的指数次方倍相对缩短，并获得了较好质量的重建图象；另外，又根据平行束投影重建图象的思想，对扇形射束进行了重排，然后利用平行束重建图象的方法进行扇束的重建，并推导了&扇束重排重建图象&方法的约束条件。

For eccentric locking collar type bearing, rotating the eccentric locking collar to lock the shaft by hand in direction of the rotation. Then tighten the set screw which located at the eccentric locking collar.

对于带偏心紧固套的外球面球轴承，将偏心套套在轴承内圈的偏心台上，沿轴的旋转方向拧紧偏心套，再用内六角螺钉扳手拧紧偏心套上的紧定螺钉。

The excavation surface model of the composition geologic strata for the shield machine was established, in which the soft soil and hard rocks are taken into account simultaneously. In terms of the cutting mechanism of the individual disc cutter and drag scraper, the total bending moment model on the cutterheads of shield machines was proposed. The bending moment behavior was discussed when the shield machine excavates in the composition geologic strata.

针对盾构机在掘进过程中上软下硬的复合地质结构，建立了其刀盘截面圆模型，基于单个切削刀和盘形滚刀的切削机制，建立了复合岩土层掘进时刀盘平面内总弯矩分析模型，分析了与刀盘接触的撑子面内，不同软土面积分数的复合地质条件下，刀盘旋转掘进过程中的弯矩动态特性。

The main motor drive at full speed rotating drum, material feed tube in a row by the introduction of uniform distribution of Drum to the inside wall filter above, in the role of the centrifugal force, the liquid through the filter and drum-wall drum filter exhaust hole, Case liquid discharge pipe machine, solid-phase interception in the material inside the drum to form a circular cake layer.

主电机带动转鼓全速旋转，物料由进料管连续引入，均匀分布到转鼓内段滤网壁上，在离心力作用下，液相物穿过滤网和转鼓壁滤孔排出转鼓，经机壳排液管排出机外，固相物截留在转鼓内，形成环形滤饼层。

Main specifications Model HY800-N HY1200-N The principle product mix The main motor drive at full speed rotating drum, material feed tube in a row by the introduction of uniform distribution of Drum to the inside wall filter above, in the role of the centrifugal force, the liquid through the filterdrum-wall drum filter exhaust hole, Case liquid discharge pipe machine, solid-phase interception in the material inside the drum to form a circular cake layer.

主要产品型号规格 HY800-N HY1200-N 产品结构原理主电机带动转鼓全速旋转，物料由进料管连续引入，均匀分布到转鼓内段滤网壁上，在离心力作用下，液相物穿过滤网和转鼓壁滤孔排出转鼓，经机壳排液管排出机外，固相物截留在转鼓内，形成环形滤饼层。

A typical lathe provides, through the feed rod, forty-eight feeds ranging from inch to inch per revolution of the spindle, and, through the lead screw, leads for cutting forty eight different threads from 1.5 to 92 per inch.

一台典型的车床的主轴没旋转一圈，通过光杠可以获得从到英寸尺寸范围内的48种进给量；而使用丝杠可以车削从1.5到92牙/英寸范围内的48种不同螺纹。

Tourbillon inner framework of a high speed to the rotation of 18.75 seconds lap, and no matter which location, the framework of the balance wheel has always been maintained at a stable swing.

陀飞轮框架内高速的一十八点七五秒圈旋转，无论哪个位置，平衡摆轮的框架内一直维持在一个稳定的挥杆。

As a downstream piping system when the valve opens, reflux valve, when closed, the main medium used to prevent backflow to prevent the pump and drive motor reversal, as well as a container medium discharge; currently the most commonly used is the valve flap around the body Swing Pin rotation flap valve and the valve body along the vertical axis to move lift check valve, but the above two kinds of structures exist in the valve closed, medium speed back quickly from the largest drop to zero, inlet side of the pipe resulted in the rapid pressure rise, resulting Proportional Pressure Reducing Valves in damaging effects on the piping system of water hammer phenomenon, it is generally a diameter of valve production of 50 ~ 500 mm.

止回阀作为管道系统顺流时开启，逆流时关闭的阀门，主要用于防止介质倒流，防止泵及驱动电机反转以及容器内介质泄放；目前使用最普遍的是阀瓣围绕阀体销轴旋转的旋启式止回阀和阀瓣沿着阀体垂直中心线移动的升降式止回阀，但以上2种结构的阀门均存在关闭时介质倒流速度从最大迅速降为零，致使管道进水管一侧内压迅速升高，从而产生对管路系统有破坏作用的水锤现象，所以一般止回阀生产口径为50～500 mm。

Through rotary joint, the high pressure oil from machinery space is sent to the actuator (pitch safety cylinder and pitch control cylinder) in the hub.

通过旋转接头将机舱内的高压油送到轮毂内的执行机构。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。