采用四元数法描述了刚体姿态系统。
Quaternions are used to describe the attitude of the rigid body system in this paper.
介绍了四元数法的基本原理及其在捷联系统中的用法；
The basic theory and the usage of quaternion are also been introduced.
为此，文中提出了有效的随机数渐近线分布法对其进行评估。
So, the paper presents the method of random asymptote distribution to solve it.
方法用涂布平板法对水中可培养菌数进行计数。
Plate count method was used to count the culturable cells in three different water samples.
一组数低于该法的管辖范围。
A number of groups fall outside of the jurisdiction of the Act.
一组数低于该法的管辖范围。
A number of groups fall outside of the jurisdiction of the Act.
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