In this paper, enumeration problems in the orthogonal geometry over a finite field with characteristic 2 are studied, and an enumeration theorem is proved.
本文研究特征为2的有限域上正交几何中的计数问题，给出了一个计数定理。
When pure oxygen is inhaled at pressures greater than 2 or 3 atmospheres, a characteristic neurological syndrome can be observed.
当吸入压力大于2或3个大气压的纯氧时，可以观察到典型的神经系统症状。
It introduces the design characteristic and some advanced technologies on no. 2 slab caster in Pansteel.
介绍了攀钢2号板坯连铸机的设计特点及采用的几项先进技术。
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