英语词汇point group怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

短语

1
The point groups of octagonal system in quasicrystal are studied.
从理论上对准晶体中八方晶系各点群进行了研究。
2
The point groups of the crystals at room temperature were determined by means of X-ray diffraction and ferroelectric measurement.
根据x光衍射及铁电测量，确定了在室温时晶体的点群。
3
Four-dimensional point groups are deduced by generating normal three-dimensional point groups with certain restrictions which are unique for modulated structures.
在某些限制下，推广三维点群的概念，导出四维空间点群。

单词	point group
释义	point group 美/ p??nt ɡru?p / 简明释义 [晶体][数]点群（等于 symmetry class）网络释义 1 ?点群组 ... 半群组 semi group 点群组 point groups 极群组 plate pack ... 短语 1 Crystallographic point groups 晶体点群 ; 晶体学点群 2 system of point-groups 点集系 3 Symmetry point groups 对称点群双语例句 1 The point groups of octagonal system in quasicrystal are studied. 从理论上对准晶体中八方晶系各点群进行了研究。 2 The point groups of the crystals at room temperature were determined by means of X-ray diffraction and ferroelectric measurement. 根据x光衍射及铁电测量，确定了在室温时晶体的点群。 3 Four-dimensional point groups are deduced by generating normal three-dimensional point groups with certain restrictions which are unique for modulated structures. 在某些限制下，推广三维点群的概念，导出四维空间点群。
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