工件

Vertical and horizontal power chuck is fixed on the bench of the chuck without rotation to clamp workpiece with hydraulic or air pressure drive. The chuck is widely applied in the production line or tube welding machine tool, grinding machine, drilling machine, milling machine, as well as numerical control machining center.

立卧式动力卡盘是指卡盘不旋转，固定在机床工作台上起夹持工件的作用，夹持动力以液压或气压驱动；该装置广泛应用在生产流水线上或管子焊接机床、磨床、钻床、铣床以及数控加工中心上。

Acid-washing passivation report being degrease 2, oxygen junction row 3, is degrease asking should check up every component and part burr clean, the greasy dirt uses cleaning agent Ccl4 solution to clean derosination after washing outside , use Shimizu to rush cleanly and , use air compression to puff trunk and then , use cotton waste brush to erase the electuary and the oxide , clean uses air compression to puff trunk together then with Shimizu irrigation on scribbling in workpiece in acid-washing passivation being lubricated outside down homogeneously , after 20 minutes.

英文高手请进，网上翻译请勿扰请将以下翻译成英文。。。 1、脱脂酸洗钝化报告 2、氧气汇流排 3、脱脂请应将各零部件毛刺清理干净，待洗表面油污用清洁剂Ccl4溶液清洗脱脂，并用清水冲净，然后用压缩空气吹干，在室外下将酸洗钝化膏均匀涂在工件上，20分钟后，用回丝刷擦去膏剂及氧化物，然后用清水冲洗干净并用压缩空气吹干。

In this paper author describes the result of an experiment which illustrates the effect of laser beam incident angle on laser cutting quality.

研究了激光入射角对薄板切割质量的影响，结果表明，在一定条件下，激光束不垂直工件表面时，仍可以获得切缝细、挂渣少的切割效果。

As sophisticated calculation of the transformation is hard to implement in each sampling time of NC machining,the coordinated motion of NC coordinate axes is expressed as quintic parametric spline function s,which use the rotation angle of the work gear as the parameter,and the re.

由于在数控加工每个插补周期中难以实现这种涉及大量运算的运动转换，因此将数控坐标轴的展成运动表示为以工件齿轮转角为参数的五次参数样条函数，保证了插补的实时性和精确性。

Based on flow stress equation at material formation and shear angle theory, the effects of cutting speed, workpiece hardness, material performance on cutting forces were investigated.

基于材料变形下的流动应力方程及剪切角理论，分析了切削速度、工件硬度、材料性能对切削力的影响。

At last considering the effect of work piece and cutting speed the new shear angle model of aluminum alloy 7050-T7451 was established and proved to be more suitable for expressing the variety of shear angle in high speed cutting process.

最后，基于快速落刀实验和有限元仿真结果对高速切削剪切角模型的进行修正，综合考虑工件材料和切削速度对剪切角的影响，建立适用于铝合金7050-T7451的高速切削加工的切削方程式。

Compared with arc welding, gas welding flame temperature is low, heat dispersion, heat slowly, so productivity is low, the workpiece deformation of serious, large welding heat affected zone of welded joint quality.

它与电弧焊相比，气焊火焰的温度低，热量分散，加热速度缓慢，故生产率低，工件变形严重，焊接的热影响区大，焊接接头质量不高。

In this paper,the clamping point s are optimized during milling process of thin-walled arc workpiece.

本文通过对弧形薄壁件铣削加工夹紧点的位置进行优化来减少工件的变形，并提出了6条启发式规则。

In the pack rolling of thin sheet, it is not use water cooling for the quickly decreasing of temperature of the work piece. The temperature of work roll is 300~400℃. Now the sliding bearing can not be lubricated by normal lubrication oil but massive asphalt. Mist and dust created by asphalt burning pollutes the environment of workshop.

在薄板叠轧工艺中，为了使工件温度快速下降减缓，不应该使用速冷，工作辊温度在300~400℃之间，这时，滑动轴承不应该使用普通润滑油润滑，而应当使用大量的沥青，沥青加热产生的蒸汽和灰尘会污染厂房的环境。

Lightweight and flexible balance crane, is an ideal lifting small items of lifting equipment, is widely used in factory floor of the machine loading and unloading, process, the automatic line, production line of the workpiece, lifting sand box, parts assembly, and stations, docks, warehouses and other occasions.

平衡起重机轻巧灵活，是一种理想的吊运小件物品的起重设备，被广泛用于工厂车间的机床上下料，工序间、自动线、生产线的工件、砂箱吊运、零部件装配，以及车站、码头、仓库等各种场合。

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。