Each of these eight kinds of exceptions has its own historical origin and legal expression and contains relatively deep theoretical meaning and practical value.

这八种例外，均各具有一定的历史渊源和法律表现，蕴含着较深的理论意义和实践价值。

youdao

A kind of flexible eight-link amplification mechanism bas been put forward, and the finite element analysts and theoretical calculation were conducted upon it.

提出一种柔性八杆放大机构，并对其进行有限元分析和理论计算。

youdao

Most paramedics only get four to eight weeks of theoretical training, followed by a similar period of practical training, followed by a year on the road when they're working as paramedics but they are trainees still.

BBC