切角

This paper will analyze the mechanical performance of the wheel and design a test-bed to test the performance of the lunar rover's wheel. Firstly, the mechanical characters of the soil are separated to press-sinkage character and shear character based on Bekker's theory, and common press-sinkage and shear models are introduced and the theory of Lankine passive earth pressure is also introduced. These basic theories are helpful to construct model.

根据Bekker半经验法的基本思想，将土壤的力学特性分解为水平方向的剪切特性和竖直方向的承压特性，阐述了地面力学中常见的土壤的承压、剪切等力学模型，并引入了朗肯被动土压力理论，为建立车轮在松软土壤中前进和转向的力学模型奠定了基础，同时进行了实验土壤的剪切实验，测量了土壤的内聚力和内摩擦角等参数。

With the front air dam removed, and the available Quadra-Lift air suspension, the all-new Jeep Grand Cherokee features a 35.9-degree approach angle,(compared to 32.3 on current model), a 29.2-degree departure angle (compared to 27.5 on current model) and 25.1-degree breakover angle (compared to 20.4 on current model).

与前气坝删除，并且可外接举空气悬架，全新的吉普大切诺基采用了35.9度角的方法，（32.3相比，目前的模式），一个29.2度的离去角（相对于27.5目前的模型）和25.1度跨越角（与之相比，目前的模式，以20.4）。

For example, copies a rectangular portion size is 6 inches x 9-inch image design in a picture format, 8.5 inches x 11 inches in the middle of the 印张, when it will be necessary to cut on the four sides are 印张 will be trimmed; but if the image placed in an angle (for example, on the upper-left corner), you just need to cut both ways, thereby saving a membership card after processing time and reduces business card printing and membership card production costs.

例如，将一幅尺寸为6英寸×9英寸的图像设计在一张幅面为8.5英寸×11英寸的印张中间，裁切时就需要对印张的四边都进行裁切；但如果将图像放置在某个角上，就只需要裁切两边即可，从而节约了会员卡制作后加工时间，也降低了制卡和会员卡制作成本。

Copies a rectangular portion size is 6 inches x 9-inch image design in a format to the x 11-inch 8.5 inches, the 印张 will be trimmed when you need to 印张 of four sides are cutting; if placed in a corner, you just need to cut both ways, saving a membership card after processing time and reduces business card printing and membership card production costs.

将一幅尺寸为6英寸x9英寸的图像设计在一张幅面为8.5英寸x11英寸的印张中间，裁切时就需要对印张的四边都进行裁切；如果放置在某个角上，只需要裁切两边即可，节约了会员卡制作后加工时间，降低了制卡和会员卡制作成本。

Test and analysis show that, the distribution patterns of the tangent veloctiy fields in the big cone area and the small cone area, which are comprised of para-free vortex and para-forced vortex, are basically identical without a change of the radius of the boundary surface; with the increase of the angle of the small cone, the para-free vortex area decreases and the para-forced vortex area increases, and the emulsifiability of the fluid drips increases with the increase of velocity gradient; the tangent velocity increases with the increase of inlet flow, and the maximum tangent velocities of both the big cone area and the small cone area are 4.94 times of the inlet flow; and the maximum tangent velocity increases with the increase of the split ratio and with the radius of the boundary surface not changed.

试验分析表明，大锥段和小锥段切向速度分布规律基本相同，均由准自由涡和准强制涡构成，分界面半径rm没有变化；随着小锥角θ的增加，准自由涡区缩小，准强制涡区扩大，速度梯度增加会加大液滴的乳化程度；随入口流量增加，切向速度增大，经拟合得出大锥段和小锥段的最大切向速度均为入口流量的4.94倍；分流比加大，分界面半径基本不变，最大切向速度增加。

The undercutting analysis probe the position of undercutting line and the spherical angle of spherical gears. Teeth contact analysis probe the kinematic error and the position of contact point of spherical gears with misalignment and ideal case. Another contact pattern analysis probe the positions and size of contact pattern ofspherical gears.

齿面过切分析主要探讨球形齿轮之齿面过切位置及过切发生的球形角，接触分析则讨论球形齿轮分别在具有装配误差及理想状况时之运动误差及接触点位置，另外，齿印分析探讨球形齿轮在受力变形后其接触椭圆之位置及大小。

Especially in processing of the special metallic materials. According as the adaption orthogonal tool edge bottom diameter and scraps' groove of taps ,using computer aid design the taps' trough shapes of taps, in order to tangency of the orthogonal .scraps' groove and tool edge' hack angle, making the scraps into streamline rolling scraps.

尤其被加工材料是特种金属时，根据丝锥所适合的前角、刃瓣、心径以及所允许容屑槽大小，运用计算机辅助设计改进丝锥槽形，使得丝锥前角、槽底圆弧以及齿背角光滑连接，切屑成流线形卷屑。

The database of judging chip break is founded, which is based on the characteristic of chip breaking curve.

通过切削试验，获得了刀具主偏角、切削速度和工作材料牌号对切屑的极限进给量和极限背吃刀量的影响规律及其经验公式，并根据切屑折断曲线建立了判断切屑是否折断知识库和切屑折断预报系统。

Predicting the up-curl chip breaking of three-dimensional groove inserts;2. The database of judging chip break is founded, which is based on the characteristic of chip breaking curve.

通过切削试验，获得了刀具主偏角、切削速度和工作材料牌号对切屑的极限进给量和极限背吃刀量的影响规律及其经验公式，并根据切屑折断曲线建立了判断切屑是否折断知识库和切屑折断预报系统。

The analysis of these wood sawing technologies are made and the conclusion is that the whole technical performance of zero degree side clearance angle woodworking saw s is better and can realize high quality,high efficient and high profit cutting of wood.

简述木材锯切技术所经历的手工期、简单机械期、近代期和现代期及其特点，对各种木材锯切技术进行了分析，结论是零锯料角木工锯子技术整体性能较好，可以实现高质量、高效率、高效益锯切木材。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。