极数,poles
1)poles[英][p?ul][美][pol]极数
1.The testing items for moulded case circuit-breaker with differentpoles in same frame size in certification based on technique were analyzed.介绍了3C认证中塑壳断路器的试验项目和要求,对认证中同一壳架等级的不同极数的塑壳断路器试验项目进行了技术分析,并对试验项目的覆盖情况进行了探讨。
2.Its structure features, choice of number ofpoles and phases, as well as calculation of its electro magnetic traction effect are discussed.提出了一种新型牵引电机——开关磁阻式直线电机（ＬＳＲＭ），对其结构特点、极数和相数选择及电磁牵引力的计算进行了论述，该种电机可望解决目前磁悬浮列车用交流直线电机功率因数低、效率低的问题，具有广泛的应用前
英文短句/例句
1.Antarctic Data Directory System and Database南极数据目录系统和数据库
2.A maximum or minimum value of a function.极大值，极小值函数的最大值或最小值
3.Characteristic Parameters and Basic Theory of the Enzyme Electrode酶电极特性参数与酶电极的基本理论
4.LIMIT THOUGHT IN MATHEMATICAL ANALYSIS AND LIMIT CONCEPTS TEACHING;数学分析中极限思想与极限概念教学
5.Discussion on the Conditional Extremum of Three Variable Function Through Unconditional Extremum;用无条件极值判定多元函数条件极值
6.AN IMPROVEMENT OF ENTROPY METHOD FOR MINMAX PROBLEM求解极大极小问题的熵函数法的改进
7.Bipole unplanned outage times(BUOT)双极非计划停运次数
8.the greatest amount of something that is possible or allowed.范围的极限最大的数量。
9.polarization receiving factor接收天线的极化因数
10.cathode-ray function generator阴极射线管函数发生器
11.VDFG (Variable Diode Function Generator)可变二极管函数发生器
12.Monopole unplanned outage times(MUOT)单极非计划停运次数
13.Catalogue on Antarctic Climate Data南极洋气候数据目录
14.Most infants have a ravenous appetite.大多数婴儿胃口极好。
15.Log periodic dipole array antenna对数偶极子阵列天线
16.maximum likelihood coefficient estimator极大似然系数估计量
17.maximum characteristic root特征函数根的极大值
18.She is keen on algebra.她对代数极感兴趣。
相关短句/例句
Ion polarity ratio单极系数
1.The results showed that negative air ion concentrations increased gradually and ion polarity ratio decreased gradually from city center to suburb.结果表明,从市中心向郊区空气负离子浓度逐渐增大,单极系数逐渐减小;有林地区空气负离子浓度明显高于无林地区,针叶林地区全年平均空气负离子浓度高于阔叶林地区,但春、夏季节则阔叶林地区高于针叶林地区;有瀑布和溪流等动态水的地方空气负离子浓度明显增加;室内空气负离子浓度低于室外,但绿色植物可使室内空气负离子浓度增加;一天中白天空气负离子平均浓度高于夜间,一年中夏季最高、冬季最
2.Based on three years of observation on the spatio-temporal changes of negative air ion concentrations in Beijing, air quality was assessed using ion polarity ratio and air ion assessment index (CI).根据北京地区3年的空气负离子浓度时空变化的实测资料,利用空气离子单极系数及安倍空气离子评价指数对北京地区空气质量进行了初步评价。
3)polarity index极性指数
1.Thepolarity index ((O+N)/C atomic ratio) and components (waxes, cutin monomer, polysaccharide) of all cuticular fractions were characterized by elemental analysis and the recoveries of each fractions were determined.5%生物高聚物(cutan)组成,脱蜡、皂化脱角质单体后角质组分的极性指数((O+N)/C)增大,而酸解脱糖后(O+N)/C则减小。
2.Sorption nonlinearity was found to be a function of thepolarity index of sediments natural organic matter(NOM), suggesting that the degree of condensation of NOM, characterized by itspolarity index, was correlated with the sorption behavior of 1,2,4-trichlorobenzene.研究表明,所有的吸附等温线均表现出明显的非线性,且非线性的程度与以极性指数(O+N)/C呈负相关关系,表明NOM的聚合度(以极性指数为表征)直接影响着吸附非线性程度。
3.According to Kier’s molecular connectivity coefficient theory, thepolarity index which is on the base of molecular connectivity coefficient and functional groups contribution index was used to denote polarity.根据Kier的分子连接性理论,利用分子连接性指数与官能团贡献参数得到的极性指数来推断溶剂的极性,根据萃取剂极性指数与被分离体系中各组分极性指数的差异来选择萃取剂,即萃取剂的极性指数与被萃取组分的极性指数差异尽可能小而于其他组分的极性指数差异大。
4)magnetic pole parameter磁极参数
1.Relationship between the sealing performance of nanometer magnetic fluid andmagnetic pole parameters;纳米磁性流体密封性能与磁极参数关系的研究
5)Polarization parameter极化参数
1.In this paper,the estimation of signal DOA and polarization parameter through ESPRIT is first proposed,then based on the matrix perturbation theory,the first order correction method of matrix eigen decomposition to .分析了如何运用ESPRIT算法得到信号的DOA和极化参数,并在矩阵扰动理论的基础上,利用矩阵特征分解一阶修正方法更新特征值和特征向量,从而使得ESPRIT算法能够自适应地估计信号DOA和极化参数。
2.The authors introduces the measurement of bottomium production cross section,the method to extract polarization parameter and the calculation of trigger rate with the CMS(Compact Muon Solenoid) detector on LHC(Large Hadron Collider).介绍了在大型强子对撞机(LHC)上的CMS探测器对底夸克偶素产生截面的测量方法、提取极化参数的算法以及触发率的计算。
6)Polarized function极化函数
延伸阅读
极数1.穷尽其技艺。 2.穷尽其道理。 3.最大的数目。
