查询词典 gathering 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。

It is possible that houses were outrageously priced one year ago and that they are still priced much higher than the national average.

情况有可能是，这里的房价曾贵得离谱，现在的房价仍然远高于全国的平均指数。

This is a mother's love for her child.

这是母亲对孩子的关爱。