时轴

Measured and recorded Records shaft / rod diameter, pore size and depth of the stuffing, and then water seal ring, stuffing box at the bottom to the top of the record the distance.

测量与记录记录轴/杆的直径、填料函孔径和深度，且当时用水封环时，记录填料函底部至顶部的距离。

It is proven that the choice of entrance of light and the beginning of the tangent from crystal surface has no effect on resolving the final direction of light in crystal by Huygensdiagraph and a conclusion that light will still spread in line in singleaxiscrystal is drawn.

当光波入射至单轴晶体时，由于晶体结构的各向异性，入射光波在晶体中将分成两束，一束称o光或称寻常光，另一束称e光或非寻常光，这种现象被称为双折射。对于o光和

Secondly, the simulative software has been made using MATLAB to simulate the suspensory point load、 velocity、 acceleration and pure toque of speed reducer shaft of pumping unit on any place and the displacement、 velocity、 acceleration of main component of pumping unit and the forces of linked point of two components, so the changes of the motion and the force of pumping unit and the geometry parameters' influence on the main performances of pumping unit have been dynamic analyzed.

其次，利用MATLAB，编制了仿真软什，对抽油机在任意位置时的悬点载荷、速度、加速度和减速器输出轴抓矩以及抽油机主要构件的位移、速度、加速度利各构件连接点的受力等进行了仿真，从而动态地分析了抽油机的运动利受力变化及几何参数对抽油机主要性能的影响情况。

With this system, the airplane s taking-off and landing track were measured, the method to decide the position of the system was induced.

采用飞机起落航迹激光定位系统对多种飞机起飞着陆航迹进行了测试，归纳出了应用该系统时测站的选点与定位方法，提出了系统不同轴与时差校正的计算公式，给出了相应的数据转换方法，并编制了相关的计算软件。

In the mechanism for threading the magnetic tape to a reel within the apparatus, the leader block for taking out a leader pin out of the tape cartridge is rotatably fitted to the arm shaft of a movable arm, and the leader block moves along guides at the time of loading the tape cartridge.

在将磁带穿到所述装置的卷轴上的所述机构中，用于将导销从磁带盒中取出的导块可转动地装配在可移动臂的臂轴上，导块在装载磁带盒时沿着导向件移动。

And, theoretical and experimental studies have been carried out of the performance of the heat transfer enhancement by adding a proper amount of nanoparticles to the thermosiphon with water as the working fluid. Compared with the ordinary thermosiphon, results indicate that this heat pipes posses such advantages as good startup, lower tube wall temperature, and its heat transfer coefficient is increased by 47～96%, heat flux is increased by 7.6～15% in the range of the experiment. The performance of the heat transfer relates to the diameter and the volume fraction of nanoparticle.

理论和实验的研究了这种热虹吸管蒸发段的工作特性，结果表明，与普通热管相比较，这种新式热管具有很好的启动特性，低的管壁温度，换热系数提高了47～96％，轴相热流率提高了7.6～15％，其换热性能随纳米颗粒粒径的减小而增大，随纳米颗粒加入量有所增加，当超过一定量时换热性能反而降低了。

By analysing and calculating the variations in distribution of axis direction contact force and contact pressure on screw thread, the influence of errors of pitch and taper of casing screw threads to the properties of resisting pull and sealing liquid and gas are studied. Based on the result obtained through analysis, a reasonable tolerance distribution for pitch and taper is proposed.

最后，本文通过分析计算内外螺纹不同的螺距、锥度参数配合时，轴向载荷及接触压力在螺纹上分布的变化，研究了套管螺纹的螺距、锥度参数误差对套管螺纹接头的拉伸和密封性能的影响，并依据分析结果提出了二参数公差带的合理分布。

In order to guarantee canned and the seal movement with has the idle time movement the turnplate operating time operating time to be suitable, while has designed especially six V-belt pulleys which connects with the turnplate, has designed six V-belt pulleys, in order to driving plate after is separated from under the turnplate six to discuss, enters another six theory, drives on the turnplate the axis rotation, completes carries on canned and the seal to the idle time on the turnplate beverage bottle, after, when the turnplate revolves once more, canned and the seal work stops, will enter the idle time condition again until the next time turnplate.

为保证罐装和封口的运动与具有停歇运动的转台工作时间适当，特在设计了一个与转台连接的六槽轮的同时，多设计了一个六槽轮，以便主动拨盘在脱离转台下的六槽论后，进入另一个六槽论，带动转台上的轴转动，完成对停歇在转台上的酒瓶进行罐装和封口，完后，当转台再次运转时，罐装和封口工作停止，直到下次转台再进入停歇状态。

Moreover, the differentiation of radius of mills over vertical axis is presented for determining undeformed chip thickness along any feeding direction.

其次根据数控环境下确定任意方向进给时瞬时切削厚度的需要，还导出了任意廓形刀具半径关于刀轴的变化率，进而为建立广义铣削力模型奠定了基础。

Based on practical cases and axial stress test of the long-short pile foundation of the same pile caps in the soft clay area, the deformation character of the long-short pile foundation and whole-long pile foundation under the geological condition which the strength of upperstratum is higher than the understratum when two or more layers are appeared in the soft clay area is analysed. Analysis also shows that both settlement and cost of the long-short pile foundation are less than those of the long pile foundation in this kind of ground.

摘要］通过工程实例和对同一承台下长短桩各断面的轴力量测，研究我国沿海城市具有两个或多个较硬的持力层的软土地区，当上持力层变形模量大于下持力层时，长短桩桩基与长桩桩基的变形性状机理，得出在该类地基中，长短桩桩基的沉降小于长桩桩基，且工程造价更低。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷