1) arc
[英][ɑ:k] [美][ɑrk]
弧段
1.
Extension and application of arc segment data structure;
GIS中弧段数据结构的扩展与应用
2.
All arcs are traced rapidly by using the connection information between points.
本文通过分析遥感分类图栅格像元之间的关系,快速自动地提取矢量数据点及其连接信息,进而利用连接信息快速生成弧段,由弧段自动组建多边形并建立完整的拓扑关系。
3.
This paper briefly describes the structure and characteristic of large-scale streaming network,and dissertates how to express the streaming network by complex nodes and complex arcs in detail.
介绍了大型流式网络的构成和特点,详细论述了使用复杂节点和复杂弧段的层次拓扑模型来描述流式网络拓扑关系的方法,并举例说明了使用层次拓扑模型的网络分析方法。
2) Circular segments
圆弧小段
3) conves and concave curve
凸凹弧段
4) ogee section
反弧段
1.
Effect of upstream aerator in ogee section of spillway tunnel on cavitation alleviation of downstream sidewall;
泄洪洞反弧段上游掺气坎对反弧段下游侧墙的减蚀作用
2.
Its main problem in projects is cavitation damage of ogee section, which can be frequently found in the end, downstream baseboard and downstream sidewalls of ogee section.
龙抬头式泄洪洞在中、高水头的水利水电工程中应用十分普遍，其突出的水力学问题是反弧段的空蚀破坏，反弧段空蚀破坏的部位常见于反弧末端、反弧段下游底板和反弧段下游侧墙。
3.
The ogee section of dam spillway of the earth-dock dam is often arranged at dam toe of section which has maximum dam height.
土石坝坝体溢洪道反弧段常布置在最大坝高断面的坝脚处,如果此处属于深厚软基,则必须对其进行处理。
5) anti-arc
反弧段
1.
When the common bottom aeration facilities is used, the downstream sidewalls near the anti-arch section still has big-range un-airflow area so that it is easy to cause cavitation damage.
采用常见的底部掺气设施时,反弧段下游附近边墙仍存在较大范围的掺气盲区,从而反弧段下游边墙容易产生空蚀破坏。
2.
Study on air entrainment to alleviate cavitations at the end of anti-arc in spillway tunnel;
对高水头、大单宽流量、低佛氏数、小底坡长明流泄洪洞,在反弧段末端采用常规的掺气坎往往难以取得理想的掺气效果,同时,反弧段下游边墙易出现空蚀破坏。
6) ogee-section
反弧段
1.
Summary of study on ogee-section cavitation in longtaitou spillway tunnels;
龙抬头泄洪洞反弧段空化空蚀研究综述
2.
Base on the previous research since 1981,this paper has given a brief introduction and comments on cavitation research of ogee-section in spillway tunnels.
根据国内外大量的工程实例,在前人研究的基础上,系统总结了龙抬头泄洪洞反弧段空化特性和空蚀成因,同时对反弧段的掺气减蚀和反弧段抗蚀体型的现有成果进行了综述,指出关于体型优化和掺气设施研究,数值实验具有花费少、适应能力强、提供的流场资料详细、便利方案选择等优点。
补充资料：十报恩 赠段先生 折段字起
【诗文】：
公物外好生涯。火相逢结大砂。女盘桓看大药。牛哮吼戏灵葩。云铺地丹炉赫，子观天碧眼华。有三生君省悟，中无事步烟霞。
【注释】：
【出处】：
公物外好生涯。火相逢结大砂。女盘桓看大药。牛哮吼戏灵葩。云铺地丹炉赫，子观天碧眼华。有三生君省悟，中无事步烟霞。
【注释】：
【出处】：
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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