direct sum of rings是什么意思

网络释义

用法例句

The least skew-ring congruence on E-inversive E-semiring is described,and the structure of a class of E-inversive E-semiring is obtained,which is the subdirect product of distributive lattice and skew-ring.

首先引入和描述了E-逆E半环上的最小拟环同余,然后刻画了是分配格和拟环的次直积的E-逆E半环。

In section six, we investigate the Gorcnstcin injective dimensions in direct products of rings, the main result is the following:Let R =ΠR_i be a direct product of rings and let M = M_1 (?)M_2(?)……(?)M_n be adecomposition of an R-module into R_i modules.

第六节研究了环的直积上的Gorenstein内射维数,得到下面结论:设R=ΠR_i(i=1,2。

THE RELATION BETWEEN THE DIRECT SUMMANDS OF AN ADDITIVE GROUP (G) AND THE DIRECT SUMMANDS OF End G

加法群的直和项与其自同态环的直和项间的关系

It gets some results about the relation between the direct summands of an additive group and the summands of the endomorphism ring of this additive group.

得到了关于加法群的直和项与其自同态环的直和项间相互刻画的一些结论。

ADDITIONAL REMARKS ON HOMO ERECTUS’ AGE AND ENVIRONMENT FROM NANJING AND BEIJING

再论南京直立人和北京直立人的年代与环境

Compare Diameters of Directed and Undirected Double Loop Networks

有向双环网和无向双环网直径规律的对比

Saturated Limiting Study of Double Loop DC Speed Regulating System

双闭环直流调速系统的饱和限幅问题

Design、Analysis and Structure Optimization of Circular Straight Tooth Refining Plate of Defiberator;

圆环直齿热磨机磨片的设计分析和结构优化

Delay Compensation and Control of a Networked DC Motor;

网络环境下直流电机的时延补偿和控制

How Local Fator and Agglomeration Econometric Impact on FDI Distribution;

区位环境和集聚经济对外商直接投资的影响

A Designing Research on Speed-Regulating System of Double Closed-Loops;

速度和电流双闭环直流调速系统的设计新探

ENVIRONMENTAL EFFECTS ON GRAVITY AND VERTICAL DISPLACEMENT OBSERVATION AT WUHAN STATION

影响武汉台重力和垂直位移观测的环境因素

Almost all kinds of decay to the murals and color statues are directly related with the small environment inside the grottoes.

壁画和彩塑的每种病害，几乎都和窟内小环境有直接关系。

piston diameter at ring lands

活塞环处的活塞直径

Archer had always been inclined to think that chance and circumstance played a small part in shaping people's lots.

阿切尔一直认为机遇和环境对人的命运的形成起着很小的作用。

II.Investment Environment in China and preferential policies for FDI

二、中国的投资环境和对外商直接投资的优惠政策。

Abstract: The paper put forward principle and object of straight profile-circular plane worm's optimization design.

文摘:根据提出的直廓环面蜗杆优化设计的原则和目标。

Effects of Host Country s Financial Environment and Government Behavior on FDI;

东道国的融资环境和政府行为对于国际直接投资的影响

Floating hammer, force of impact don't act on basic shaft and surface, have buffer action.

、环锤浮动，冲击力不直接作用于主轴和壳体，有一定的缓冲作用。

Scientists and environmental activists continue to argue over the seriousness of global warming.

科学家和环保分子一直在为全球变暖的严重性争论不休。