查询词典 major axis

Research on the Basic Kinematics-Geometry Theory and Tool Positioning Strategy for 5-axis NC Machining;2. The paper introduces the construction features of undevelopable ruled surface integral impeller and two 5-Axis numerical control mill machining methods of vane shape which are "line contact" and "point contact".

文章介绍了不可展直纹面型整体叶轮的结构特点及五坐标数控铣削加工叶片型面&线接触&和&点接触&两种方式，分析了采用侧铣加工产生误差的原因，对加工中的不同工步及精加工薄叶片的特殊处理进行了分析，并提出了相应的解决方案，对整体叶轮的数控加工有一定的现实意义和实用价值。

Since porosity subject to heaving stress when saturated clay is freezing,grows brachy-axis is expanded,and yield point appears in micro-axis tip of porosity. As a result,area of porosity dramatically aggrandizes.

封闭系统中饱和冻结粘土冻胀过程中，孔隙受到冻胀力的作用使得孔隙长轴扩展、短轴膨胀，长轴尖端屈服，致使孔隙的面积增大。

Axis design calculation, but also has bearing's choice, the bearing seat choice and the design, decelerates electrical machinery's choice, the axis design and the examination.

轴的设计计算，还有轴承的选择、轴承座的选择和设计、减速电机的选择、轴的设计和校核。

A polarization anisotropic hologram element diffracts the light polarized in the x-axis direction, and transmits the light polarized in the y-axis direction.

偏振光各向异性全息元件180使x轴方向的偏振光发生衍射，使y轴方向的偏振光透过。

Meanwhile, she is equipped with the most advanced production and inspection machines: one Mitsubishi 4-axis drilling-milling machine center, five 3-axis drilling-milling machine centers, 50 CNC lathers, 14 general lathers, Three-Dimensional Inspection Machine, Angle Inspection Machine, Salt Spray Machine, Surface Roughness Inspection Machine etc.

与此同时，公司装备了现代化的生产和检验设备：一台大型三菱4轴镗铣加工中心，五台三轴镗铣加工中心，50台CNC数控机床，14台普通机床，三坐标检测仪，角度测量仪，盐雾实验机，粗糙度测量仪等等。

The results show that the cavity nucleates while the twin-roll-cast AZ31 alloy sheet deforms, and the cavity starts on the tri-grain boundary. The continuously growth and coalescence of the cavities induce the material fracture. The cavities grow directionally and prefer to grow along axis perpendicular to the loading axis.

结果表明：镁合金板材热变形过程中，空洞首先在晶界尤其是在三叉交界处形核，随后不断长大和聚合，导致材料断裂；空洞的长大具有方向选择性，与拉伸轴方向垂直的空洞容易长大。

This paper analyzed the configuration of the five-axis machine tool with a nutating head whose rotational axis is in an inclined plane.

分析两个旋转轴非正交的倾斜旋转轴结构的五轴机床结构，运用机构学理论建立该类型五轴机床机构学模型。

This paper studies that tolerances accumulation effect is differet for sign formal of different dimension applying to tolerance on degree of position and dimension for axis of limiting holes group,and quantizes tolerance ranges of tolerance on degree of position and dimension for axis of controlling hole group.

研究了位置度公差和尺寸公差在限制孔组轴线中因采用不同图样标注形式而导致公差累加效果的不同，量化了位置度公差与尺寸公差在控制孔组轴线中公差带的大小。

On the basis of the cultural axis, in the city's brain----the Citizen Center, there forms the guide idea for the city's development and construction, while the Citizen Plaza is revealed as that the guide idea sublimes to be a great power which could promote the society after melting with the suggestions and advices of the populace. This power grows with the green river and becomes stronger and stronger, passing by the south plaza and south main axis in the center plaza, finally reaches the climax area----the conference and exhibition center, the display district for the society's productive forces.

在文化轴的基础上，城市的大脑－市民中心产生城市发展建设的指导思想，市民广场则表达为这种指导思想在与来自四面八方的群众的意见和建议融汇后，升华成为可以推动社会进步的力量，这股力量随着绿河成长，由弱变强，其间经历了中心广场南广场和南中轴（市民休闲和商业活动复合区），最终到达了高潮点——会展中心，即社会发展力水平和社会财富的展示区。

Optic axis (the line of corneal apex and center of crystalline lens) and visual axis (a line connects pupil center and foveal center) subtends a visual angle.

视角是指光轴（角膜顶点与水晶体晶体轴线中心的连接线）与视轴（瞳孔中心到视网膜中央凹的连接线）间的夹角。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。