表面切割

The angle between the face of a cutting tool and the surface of the work.

切割工具面与作品表面之间的角。

When bevel or V grooves can be flame-cut, they cost less than J and U grooves, which require planning or arc-air gouging.

当斜缝或V形缝可以用火焰切割时，比J形缝和U形缝经济，它们需要表面刨光或电弧刨平。

We present an efficient approach for generating the correspondence between two homeomorphic 3D polyhedral models. The user can select vertices on the polyhedra to decompose the boundary of each polyhedron into the same number of morphing patches. Further, the user can specify the feature points on the morphing patch pairs to improve the morph. After the morphing patch pairs are be mapped to 2D regular polygons, they are merged and reconstructed to generate a morph. In the main procedures of our approach, we propose an easy mapping method and a foldover-free warping technique. And we also propose a most efficient merging algorithm. The merging can be completed in O.

我们的对应演算法主要的流程架构是(1)设计一套良好的介面提供给使用者在物体表面上点选圈选点；(2)利用最短路径将圈选点作两两相连，以切割勿体表面；(3)利用Relaxation的方式进行摊平的目的；(4)利用Warping技术以增进使用者的便利性，因此无须圈选太多快patch以精确对齐物体的特徵，同时还提供一套自行避免相交情况的演算法以保证不相交；(5)我们研发出一套极快速的merge演算法，其利用最小轮廓涵盖结构而有效地达成区域搜寻与区域merge，因此在效率上达到O；(6)最后藉由Remesh与3D位置资讯的建立，重构出对应的结果整体而言，透过本论文所研发的对应演算法将不用花费太多的执行时间，因此符合经济效益。

The effect of laser cutting parameters on surface roughness of kerf, splash and residue of kerf surface was studied systematically.

连续激光切割加工效率高，但对于薄板以及精密加工来说，采用脉冲工作方式，可以显著减小热影响区，提高切缝的表面质量[1] 。

They will block kerf between the seal with epoxy cement prison, and then a little way to the surface of disappearing, is almost identical with the original, if not carefully see if it is difficult to see the middle has been cut.

他们将块体间的切缝用环氧水泥封牢，再一点点地把表面抹平，几乎跟原貌相同，如果不细心查看的话，很难看出中间曾经切割过。

Finally, the PEC-treated LEDs are packeted as the TO-Can and Lamp formal to measure the output power. The fabricated LEDs through the PEC process have 14.6% output power enhanced compared with the general LED at 20 mA operation current.

最后将基板磨薄切割劈裂成晶粒，并且以 TO-Can 与 Lamp 形式封装，量测电性资料与光学特性，发现表面结构的改变也影响发散角度，经过处理的晶粒有较大的发散角度，最终封装成 Lamp 形式的光输出功率增加14.6%。

Fig. 3 illustrates the surface prole that is obtained by front and back cutting for a depth of cut of 0.5 mm, spindle speed of 750 rpm and feeds from 0.4 up to 1.0 mm/rev.

图。 3说明了表面轮廓是获得正面和背面切割的切削深度为0.5毫米，主轴 750转的速度和饲料由0.4上升到1.0毫米/转。

At last,a preliminary visual 3D model system for coal seam is established based on coal seem 3D model and using OpenGL and Vc~6.0.Currently a part of research results has been applied to Mine Survey Geological Information System(MSGIS3.0),including constrained triangulation of coal bed suface, coal bed scaleboard contours with fault,part encrypt of contours,excellent turn of triangle,space encrypt,any direction profile of coal bed and so on.

论文的部分研究成果已经应用于煤矿地质测量空间信息系统MSGIS3.0中，主要表现为通过煤层底板表面的约束三角剖分，实现了煤层底板等高线的断层处理、等高线的局部加密、三角形优化、空间插值、任意切割煤层剖面等方面。

A model of generation of striation based on the diffusion reaction of iron and oxygen was given.

提出了一种基于铁和氧气扩散反应进行的管材激光切割表面条纹形成模型。

Femtosecond laser ablation of Zr-based metallic glasses in air, including micro-drilling, trenching and cutting, has been investigated.

采用飞秒激光对Zr基金属玻璃在空气中进行了表面烧蚀、微打孔与微细切割等过程的研究。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。