finite-index map 基本群有限指数映射
subgroup of locally finite index 局部有限指数的子群
finite element technique index 有限指数
index for a finite set 有穷集下标
Two new theorems on the solvability of finite groups are proved by means of index complex of maximal subgroups.
建立了以有限群的极大子群的指数复合刻划可解性的两个新定理。
Air temperature distribution is analyzed with a finite element method. Linear distribution of refractive index is calculated for certain measurement positions.
该文利用有限元方法分析热轧车轮周围空气温度场，计算得到相应测位空气折射率的线形分布规律。
The resistivity, formation factor, and resistivity index of rocks were calculated using the finite element method (FEM) and we studied the effect of rock wettability on electrical properties.
利用有限元方法计算了岩石电阻率，进而得到岩石地层因素和电阻率指数，并考查了岩石润湿性对岩石电阻率指数的影响。
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