工件

The polishing fluid is composed of Al2O3 micropowder with a grain diameter of 0.5-1.0 mum, coal oil, lard, plant oil and spindle oil, wherein Al2O3 micropowder is abradant, coal oil is solvent, the mixing liquid of lard, plant oil and spindle oil is as additive; and the polishing fluid is prepared by a mixing liquid which is composed of 2% lard, 2% abraser, 8% plant oil and spindle oil by volume and 88% coal oil. The polishing fluid can produce the H62 brass element with a uniform surface quality and a good surface roughness value up to 0.008 mum, has the characteristics of no eroding elements, effectively relieving mechanical score, good processing surface quality and can be used for decoration of the plastic metal material and surface polishing process before the material metallographic microscope analysis.

抛光液由粒径为0.5～1.0μm的Al 2 O 3 微粉、煤油、猪油、植物油和锭子油混合而成；其中Al 2 O 3 微粉为磨料，煤油作溶剂，猪油、植物油和锭子油的混合液作添加剂；抛光液按体积比由2％的猪油、2％的磨料、8％的植物油和锭子油的混合液、88％的煤油配制而成；该抛光液能够加工出表面质量均匀，表面粗糙度值达到0.008μm的H62黄铜工件，具有不腐蚀工件、有效缓解机械刻划作用、加工表面质量好的特点，可以用于塑性金属材料的外观装饰性加工，以及材料金相分析前的表面抛光加工。

The results show that the zero speed point is located on the arc between two absolute speed zero points of rotation axes, and the necessity of relative speed zero point is demonstrated, From the location of speed zero point, some useful conclusions can be drawn.

对速度零点的位置进行了分析，得出了如下结论：对于一定形状的工件，通过调整两轴的转速比以及两轴夹角参数，可以将速度零点置于工件之外，从而避免速度零点对研磨的不利影响。

Acclivity 20° against to fall the silk brick, in resistance wire Yi Congcao does not drop out. The drum stove pot uses the 1Cr18Ni9Ti stainless steeliness full circle columnar order, or uses the chromium manganese nitrogen high-temperature steel casting, an origin bearing spider outside the furnace bodythe supporting, and uses the electric motor belt speed reducer to carry on the biography to use, to cause the stove pot to revolve slowly, the work piece causes it heating along with drum stove pot revolving to be even, and work piece mutually between non-cover phenomenon, after the heat treatment, theluster is consistent, stove pot another end is a feed head, by two hoop supporting.

滚筒炉罐采用1Cr18Ni9Ti不锈钢制成圆柱型，或采用铬锰氮耐热钢铸件，一端由轴承支座在炉体外支承，并采用电动机带减速机进行传用，使炉罐缓慢旋转，工件随滚筒炉罐旋转使之受热均匀，并且工件互相之间无复盖现象，热处理后色泽一致，炉罐另一端为进料口，由二只滚轮支承。

Thirdly, we examine a job scheduling problem, in which jobs could be processed by multiple in-line steppers. This problem includes two decisions: job assignment and job sequencing. Through developing a new and concise representation scheme for modeling the two decisions, we solve the multiple-machine scheduling problem by various meta-heuristic algorithms. The preceding single-machine scheduling problem in fact is a special case of the multiple-machine scheduling problem.

第三部分探讨在多机情境下，求解工件排程问题，在此情境下产生两个决策变数：工件指派给各机台，以及工件在机台内的排序问题；为了解决此问题，本研究透过新的染色体设计，能同时代表此两个决策变数，使得解题空间变小，求得更好的解题品质。

It is shown that the residual stress, especially the peak stress in subsurface, increases with the elevation of shot pening parameters and will saturate when shot speed approaches to the limit speed of the equipment.

试验结果表明：随着三种喷丸工艺参数值的提高，工件表面残余应力增大，尤其是工件次表层峰值应力增大更明显，且内移，但当丸粒速度接近设备所产生的最大值时，则工件表层应力值几乎不再增加。

Results and Conclusion When the workpiece is of little elastic deformation, the discretization approach as proposed in this paper is appli- cable not only to the mathematical modeling for thread-cutting process, but to the modeling for processing simple workpiece by using complex cutter, and processing complex workpiece by using simple cutter.

结果和结论作者提出的离散化思路在工件弹性变形不大时，不仅适用于螺纹切削过程的数学建模，亦适用于其它复杂形状刀具加工简单形状工件和用简单形状刀具加工复杂形状工件时的数学建模。

According to the resonance of mechanical machining,the relationship between the spindle speed of lathe and the surface quality of the workpieces was studied on turning a long and thin axis on the lathe.

从机械加工中共振的角度出发，研究细长轴车削加工时车床主轴转速与工件表面质量的关系；并以CA6140车床为例，讨论刚性主轴的临界转速，提出细长轴车削加工时车床主轴的最佳转速范围，避开共振区，从而提高工件的加工精度，保证工件的表面质量。

The bung uses the stainless steel plate to make the ledger wall, the built-in aluminum silicate heat preservation, the fire door size extends 350mm, high 580mm, in spandrel wall body whole upward promotion type electrically operated heat preservation fire door, when fire doorclosure the entire fire door is a circular whole, the fire door sealing property strengthens, the turntable uses the stainless steel to make the 1600m/m turntable, with take load bearing work piece, the entire turntable does not divide the location as the plane, the operators may pile up the workpiecewillfully, because turntable every 40 minutes turn on lathe biography one week, when work the operators did not look nearly the turntable in the rotation, the fire door starts in addition in a big way, the operators may pass in and out the work piece willfully, but is not limited the time the turntableto be possible in 20-60The minute revolves one week-long time to modulate velocity willfully, no matter the fire door opens shuts, the turntable from the start work on uninterrupted revolving, not any necessity and the fire door open shut carry on the interconnection, needs to stop when revolves, onlyneed press down on the control electricity tank's pause button then, the fire door opens shuts, grasps voluntarily by the operators, presses installs nearby the fire door opens shuts button then. Transfers the bottom type resistance furnace's temperature control part to use the microcomputer automatic

炉盖采用不锈钢板做底板，内置硅酸铝保温，炉门尺寸宽350mm，高580mm，侧墙体中整体向上提升式电动保温炉门，炉门关闭时整个炉门为一个圆形整体，炉门密封性能增强，转盘采用不绣钢制成1600m/m转盘，用以承载工件之用，整个转盘为平面不分工位，操作人员可以任意堆放工件，由于转盘每40分钟旋传一周，工作时操作人员几乎看不到转盘在转动，加上炉门开的较大，操作人员可以任意进出工件，而不受时间限转盘可以在20—60分钟旋转一周的时间任意调速，不论炉门启闭、转盘从启动工作就不间断的旋转，没有任何必要与炉门启闭进行联锁，需要停止旋转时，只需按下控制电柜上的停止按钮即可，炉门的启闭，由操作人员自行掌握，按动安装在炉门边的启闭钮即可。

The bung uses the stainless steel plate to make the ledger wall, the built-in aluminum silicate heat preservation, the fire door size extends 350mm, high 580mm, in spandrel wall body whole upward promotion type electrically operated heat preservation fire door, when fire door closure the entire fire door is a circular whole, the fire door sealing property strengthens, the turntable uses the stainless steel to make the 1600m/m turntable, with take load bearing work piece, the entire turntable does not divide the location as the plane, the operators may pile up the work piece willfully, because turntable every 40 minutes turn on lathe biography one week, when work the operators did not look nearly the turntable in the rotation, the fire door starts in addition in a big way, the operators may pass in and out the work piece willfully, but is not limited the time the turntable to be possible in 20-60The minute revolves one week-long time to modulate velocity willfully, no matter the fire door opens shuts, the turntable from the start work on uninterrupted revolving, not any necessity and the fire door open shut carry on the interconnection, needs to stop when revolves, only need press down on the control electricity cabinet's pause button then, the fire door opens shuts, grasps voluntarily by the operators, presses installs nearby the fire door opens shuts Niu then.

炉盖采用不锈钢板做底板，内置硅酸铝保温，炉门尺寸宽350mm，高580mm，侧墙体中整体向上提升式电动保温炉门，炉门关闭时整个炉门为一个圆形整体，炉门密封性能增强，转盘采用不绣钢制成1600m/m转盘，用以承载工件之用，整个转盘为平面不分工位，操作人员可以任意堆放工件，由于转盘每40分钟旋传一周，工作时操作人员几乎看不到转盘在转动，加上炉门开的较大，操作人员可以任意进出工件，而不受时间限转盘可以在20—60分钟旋转一周的时间任意调速，不论炉门启闭、转盘从启动工作就不间断的旋转，没有任何必要与炉门启闭进行联锁，需要停止旋转时，只需按下控制电柜上的停止按钮即可，炉门的启闭，由操作人员自行掌握，按动安装在炉门边的启闭钮即可。

The bung uses the stainless steel plate to make the ledger wall,the built-in aluminum silicate heat preservation, the fire door size extends 350mm, high 580mm, in spandrel wall body whole upward promotion type electrically operated heat preservation fire door, when fire door closure the entire fire door is a circular whole, the fire door sealing property strengthens,the turntable uses the stainless steel to make the 1600m/m turntable, with take load bearing work piece, the entire turntable does not divide the location as the plane, the operators may pile up the work piece willfully, because turntable every 40 minutes turn on lathe biography one week, when work theoperators did not look nearly the turntable in the rotation, the fire door starts in addition in a big way, the operators may pass in and out the work piece willfully, but is not limited the time the turntable to be possible in 20-60The minute revolves one week-long time to modulate velocity willfully,no matter the fire door opens shuts, the turntable from the start work on uninterrupted revolving, not any necessity and the fire door open shut carry on the interconnection, needs to stop when revolves, only need press down on the control electricity cabinet's pause button then, the fire door opens shuts,grasps voluntarily by the operators, presses installs nearby the fire door opens shuts Niu then.

炉盖采用不锈钢板做底板，内置硅酸铝保温，炉门尺寸宽350mm，高580mm，侧墙体中整体向上提升式电动保温炉门，炉门关闭时整个炉门为一个圆形整体，炉门密封性能增强，转盘采用不绣钢制成1600m/m转盘，用以承载工件之用，整个转盘为平面不分工位，操作人员可以任意堆放工件，由于转盘每40分钟旋传一周，工作时操作人员几乎看不到转盘在转动，加上炉门开的较大，操作人员可以任意进出工件，而不受时间限转盘可以在20—60分钟旋转一周的时间任意调速，不论炉门启闭、转盘从启动工作就不间断的旋转，没有任何必要与炉门启闭进行联锁，需要停止旋转时，只需按下控制电柜上的停止按钮即可，炉门的启闭，由操作人员自行掌握，按动安装在炉门边的启闭钮即可。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。