查询词典 intersection ring

In this paper,the branch pipe network as a virtual ring pipe network is proposed,and the equation for it has been set up.It is proved that Kirchhoff law of ring pipe network is a kind of special form of equation,which is the virtual ring pipe network.

本文中提出将树枝管网视为虚环，建立了虚环方程，证明了环形管网的基尔霍夫定律是虚环方程的一种特殊形式，环形管网方程和虚环方程互相兼容，可联立求解。

Gas speed through louver ring and gas speed from the space between dam ring and armor ring are very important.

通过百叶环的气流速度，以及通过挡环及防护环之间空间的气流速度是很重要的。

Finally it is shown that if R is a ring with a nonzero local powerzero ideal then the matrix ring is a NCI ring.

最后证明了如果环R存在非零的局部幂零理想I那么R的全矩阵环Mn是NCI环。

Finally, we give the relations among the Von Neumann regular radicals of generalized matrix ring A, Aji-ring Ajjand ring A.

我们首先讨论了广义矩阵环的根，得到了广义矩阵环的稠密性定理和Wedderburn-Artin定理。

In addition, we obtain the following results:(1) A ring R is weakly unit-regular if and only if so is the n×n matrix ring Mn of R for any n≥1;(2) Let R be a ring such that R/J is regular.

另外，我们还证明了下面两个结果：(1)环R是弱幺正则的当且仅当Mn(n≥1)是弱幺正则环；(2)假设R是一个环且使得R/J是正则环。

The author determines necessary and sufficient conditions for a forinal triangular matrix ring to be V-ring or semi- V-ring.

给出了形式三角矩阵环 R 是V-环或半 V-环的充要条件。同时

In order to enhance wear-resisting performance of the internal combustion engine piston ring,matrix microstructure and radial elastic force of the piston ring,the matching between piston ring and cylinder were analyzed.

为提高内燃机活塞环的耐磨性能，分析了活塞环的基体组织、径向弹力及活塞环与气缸套的匹配状况对其耐磨性的影响。试验表明活塞环的基体组织以细粒状珠光体或回火索氏体、石墨呈细小均匀分布为佳；活塞环的径向弹力大小应适宜，一般为

Two ring structures(a five- membered ring and a six membered ring) were formed simultaneously.

并相应地形成了六元环和五元环结构。

They are apply to the flat grinding and polishing of different materials and machinery such as sealing ring of mechancial seal,ceramic microsection, steam-cylinder piston ring, oil pump vane carborundum, silicon nitride,quartz crystal, kentanium ring,graphite, gem, tonsorial knife, shaver knife, auto oil pump sealing element, air flap, metal material, project plastic, etc..

公司主要生产双面研磨与抛光机。本公司引进先进的生产设备和质量检测设备，从原料的购入、生产、检测、销售全过程管理均采用严格的质量标准。公司从创建伊始即以稳定可靠的产品质量，高效科学的管理，诚信优质的服务深受业内关注。

Cassini imaging scientists analyzing images acquired over the course of about 600 days found the tiny moonlet, half a kilometer across, embedded within a partial ring, or ring arc, previously found by Cassini in Saturn's tenuous G ring.

卡西尼小组的成像科学家在分析了600多天来获取的图像时发现了这一小卫星，直径约1公里，镶嵌在一段环弧中。这段环弧是由卡西尼飞船早先在土星纤细的 G 环中发现的。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。