查询词典 concave line

Liao source building glass products cover a number of types of building glass, the existing production lines, including two of the level of steel line, two lines of bending steel, a Low-E glass fiber reinforced plastic of line, two folders plastic glass production line, a hollow glass production line A GLAZE glass production lines, two bending glass production line, two one-step color folder folder wire glass production lines, three bilateral milling machine, automatic glass cutting machine Paul Quintero, many Units milling machine, positioning drilling machine, different line milling machine, Beveling machine, such as production equipment.

燎源建筑玻璃产品涵盖了多个种类的建筑用玻璃，现有生产线包括两条水平钢化线、两条弯钢化线、一条Low-E玻璃钢化线、两条夹胶玻璃生产线、一条中空玻璃生产线、一条彩釉玻生产线、两条热弯玻璃生产线、两台一步法彩夹夹丝玻璃生产线、三台双边磨边机、全自动保特罗玻璃切割机，多台磨边机、定位钻孔机、异行磨边机、斜边机等生产设备。

This method could not only applied to outer noncircular gear with all convex pitch line but also applied to outer noncircular gear with partial concave pitch line and inner noncircular gear.

这种磨削原理不仅可以应用于节曲线外凸的非圆齿轮，而且可以应用于磨削带内凹节曲线的外非圆齿轮及内非圆齿轮。

At the same time, the essential motion in the gear grinding process and the structure of gear grinding CNC has been discussed. This method could not only applied to outer noncircular gear with all convex pitch line but also applied to outer noncircular gear with partial concave pitch line and inner noncircular gear.

把成形砂轮看作插齿刀的一个刀齿，就可以利用非圆齿轮插齿加工过程中齿廓成形原理，推导出非圆齿轮齿廓的成形砂轮展成磨削方法，同时讨论了按这一原理磨齿时需要的运动及数控机床结构。

This paper aims at the prominent issue that current models of spatial topological relations can not represent complex object, among which 9-Intersections Model (9IM) is well known. Therefore, taking cadastral data as example, one model of topological relations between complex and spatio-temporal objects based on 9IM is put forward. And the improved sweep-line algorithm is designed. Specific studies as follows:(1)According to the concepts of point set topology, the author distinguishes the complexity of the object, redefines the spatial point, line and region. For instance, in the simple region, concave one is more complex than convex, composite regions can be composed of many parts or with holes, and so on.

本文针对当前空间拓扑关系模型无法表达复杂对象的突出问题，以地籍对象为实例，以9I模型为基础，探索了一种适合复杂对象和时空对象的拓扑关系表达模型，较好地解决了地籍对象中各类要素间拓扑关系的描述和应用，实现了地籍变更中变化语义类型的推理和历史回溯；通过对现有的拓扑关系计算方法进行了改进，设计了相关算法，给出了C语言程序示例；最后通过实验系统的实现，验证了模型和算法的可行性。

Line L4: Abeam abeam Maji Shan No.2 buoy （30°37′.30 N/122°30′.53E）.5.Line C1: the connection line between Xiaocaihua Light beacon and the west end of Zhoushan Dao（30°10′.0N/121°56′.0E）.6.Line C2: the connection line between Xiaocaihua Light beacon and the north end of Jintang Dao（30°05′.2N/121°52′.4E）.

南下船舶或设施拟通过西堠门、桃夭门大桥通航孔时，应当在抵C1报告线30分钟之前，向VTS中心报告船舶动态、水面以上最大高度和拟通过的通航孔大桥名称。

Base on central line coordinate given out and calculation formula provided by this paper that calculate azimuth of normal line of any point on central line, calculation of side line coordinate is connected with central line coordinate only, and has no concern with other calculation.

提出了利用道路中线的法线求解路线任意点坐标的计算模式，在计算出中线坐标的基础上，给出了计算中线任一点法线方位角的计算公式，使边桩坐标的计算只与中线坐标有关，而与其他计算无关。

Ideological line is always an essential issue in the construction of Marxist partyist and it is the basis of constituting and executing political line, organizing line and working line, the correctness or incorrectness of the ideological line decides success or failure of the Partys undertakings.

思想路线问题历来是马克思主义执政党建设中的一个带有根本性的问题，它是党制定和执行政治路线、组织路线和工作路线的基础，思想路线的正确与否，从根本上决定着党的事业的兴衰成败。

In chapter four, we study the second isoperimetric connectivity of line graphs and line digraphs. For line digraphs, we show that the second isoperimetric connectivity of strongly connected line digraphs with δ≥ 2 equals its connectivity. For line graphs, we give a sufficient and necessary condition for the existence of the second isoperimetric connectivity, and we show that under the condition that the second isoperimetric connectivity exists, the second isoperimetric con

第四章研究线图和有向线图的第二等周点连通度，得到了如下结果：(1)最小度大于等于2的强连通有向线图的第二等周点连通度等于它的点连通度；(2)对于无向线图，我们给出了第二等周点连通度存在的充要条件；(3)对于第二等周点连通度存在的无向线图，它的第二等周点连通度或者等于限制点连通度或者等于最小度和次最小度的和。

Proposed rail lines include: a northern New England line; an Empire line running east to west in New York State; a Keystone corridor running laterally through Pennsylvania; a major Chicago hub network; a southeast network connecting the District of Columbia to Florida and the Gulf Coast; a Gulf Coast line extending from eastern Texas to western Alabama; a corridor in central and southern Florida; a Texas-to-Oklahoma line; a California corridor where voters have already approved a line that will allow travel from San Francisco to Los Angeles in two and a half hours; and a corridor in the Pacific Northwest.

拟议的铁路线包括：新英格兰北部线；一个帝国线东西在纽约州；走廊运行的基石，通过横向宾夕法尼亚州；一个主要芝加哥枢纽网络，一个东南亚网络连接哥伦比亚特区佛罗里达州和墨西哥湾沿岸地区；海湾海岸线从西部得克萨斯州到东部阿拉巴马；在走廊中部和南部的佛罗里达州；德州至俄克拉何马州线；加州走廊，在那里选民已经批准了线，使旅游从旧金山到洛杉矶的两个半小时；和一条走廊，在西北太平洋。

The results indicate:1 There are limitations to protect 110kV Kang-Ping transmission line and 220kV Da-An transmission line lightning, and the line-surge arrester can improve the lightning-proof property of transmission line on mountainous area and enhance the lightning-withstand level.2 Tower grounding resistance, distance between towers, etc can affect the function of line-surge arrester.

110kV康平线和220kV大安线已有的防雷措施不够理想，而加装了线路型避雷器后能明显改善山区输电线路的防雷性能，提高输电线路耐雷水平。2）输电线路的接地电阻，线路档距等因素对线路型避雷器的应用有影响。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48