The set of molecule symmetrical operation meets the definition of mathematical group.
分子的全部对称操作的集合完全符合数学群的定义。
Ma, research manager of the visual Computing Group at Microsoft research Asia, is interested in the mathematical principles behind the processing and understanding of visual data.
马毅是微软亚洲研究院视觉计算组的主任研究员。他的研究兴趣在于视觉认知背后的数学原理以及对视觉数据的理解。
This week, at the annual meeting of the American Physical Society's Division of Fluid Dynamics in Baltimore, Maryland, the group reported a mathematical formula explaining how wine sloshes.
本周，在马里兰州的巴尔的摩(美国一座港市)，每年的美国物理学会流体力学分会上，这个团队报告了描述葡萄酒晃动的数学公式。
In teaching maths, for instance, both those countries spend more time on basic arithmetic than on deeper mathematical ideas, emphasise mental arithmetic, rely on standard teaching manuals and favour whole-class (as opposed to group) teaching.