And you'll see the derivations in your notes.

讲义上有推导过程。

It is not because I favor derivations in class.

而不是我喜欢在课堂上讲推导。

Lie algebras of derivations of n-differential operator algebra.

元微分算子代数的导子李代数结构。

The paper presented a summary of its theoretical derivations and experimental results.

总结了有关理论推导和试验研究结果；

The rule allow some obviously invalid derivations (that is, restriction allows more than base).

规则允许一些明显无效的派生元素（也就是说，限制类型允许比基础类型更多的元素）。