论题

nà ge lùn tí piān lí le zhè piān lùn wén lùn shù de fàn chóu

那个论题偏离了这篇论文论述的范畴。

That topic falls outside the scope of this thesis.

zhè bìng bù shì jīng yàn xīn lǐ xué de mǒu gè lǎo lùn tí

这并不是经验心理学的某个老论题。

This isn't just any old issue in empirical psychology.