1) FB lower bound
FB下界
2) Lower bound
下界
1.
The lower bound of efficiencies of least square estimate with respect to the ridge estimate;
最小二乘估计相对于岭估计的效率下界
2.
Solving bottleneck travelling salesman problem with competitive decision algorithm based on quick lower bound estimation;
基于快速下界估算的瓶颈旅行商问题竞争决策算法
3.
The lower bound of tenable probability about inequation group;
关于不等式组成立的概率下界
3) Lower bounds
下界
1.
Two Circulant Graphs of Prime Order and New Lower Bounds of Eight Classical Ramsey Numbers;
两个素数阶循环图与八个经典Ramsey数的下界
2.
Lower Bounds for Three 2-color Van der Waerden Numbers W(k_1,k_2);
3个二色Van der Waerden数W(_k1,k_2)的下界
3.
In this paper,we give the estimates for the upper and lower bounds on the inverse elements of strictly diagonally dominant periodic tridiagonal matrices,and improve the latest findings.
本文给出了严格对角占优周期三对角矩阵逆元素上界和下界的估计,改进了一些学者近期的研究结果。
4) FB beam
FB梁
1.
All main structure beams are FB beams on Zhaodong offshore oil area OAD large- scale drill platform.
完全按照美国标准设计、建造的赵东区块ODA大型钻井平台的主结构梁均为FB梁。
5) FB-2000 DCS
FB-2000DCS
1.
This paper introduces the boiler s DCS that the home-made FB-2000 DCS is combined with the process control experimental device for the boiler.
介绍国产FB-2000DCS分散控制系统与锅炉过程控制实验装置整合的工业锅炉DCS控制系统,具体说明系统的组成、控制策略、基本配置和软件组态。
6) FB steel
FB钢
1.
Effect of technological parameters on the mechanical properties and microstructure were investigated,and strengthening mechanisms of FB steel were analyzed.
用Gleeble-1500热模拟实验机测定了FB钢变形后的CCT曲线,并对实验钢采用不同工艺进行了控轧控冷实验。
补充资料:上界与下界
上界与下界
upper and lower bounds
上界与下界〔u碑艘a川匆酬erb吹11.ds;砚pxlt朋N H.袱-。a二印auH」 实数轴上点集的特征.一个给定实数集的上确界是该集合上界中的最小数;它的下确界是它下界中的最大数.现在再说得更详细些.设X为给定的实数子集.实数刀称为X的上确界(比t upper bollll(l),记为suPX(来自拉丁文“sup~”—最大),是指,对每个x6X,成立不等式x蕊刀,而对任意的刀‘<夕,则有x“X使得x‘>刀‘.数:称为X的下确界(g侣铝tfo毗boUnd),记为infX(来自拉丁文“访几m切m”—最小),是指一切x‘X均满足x):,而对任意,‘>:,则有x’‘X,使得x‘<仪‘ 例 讨(a,bl=a,sllp【a,bl“b; 诫(a,b)“a,sllp(a,b)二b;若集合X仅含两点a与b,a
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参考词条