Objective the mental factors of lumbago and dorsalgia were studied, in order to lay theory foundations of psychotherapy for lumbago and dorsalgia.

目的对腰背疼痛的心理因素进行了研究，为腰背疼痛的心理治病奠定了理论基础。

youdao

His book explains the theory for the lay public.

他的书为大众阐明了这个理论。

《牛津词典》

Einstein's broader theory of relativity told us more about how the universe works and helped to lay the foundation for quantum physics, but it also introduced more confusion into theoretical science.

爱因斯坦的广义相对论令我们更了解宇宙的运作方式并且为量子物理学打下了基础，但是也为理论科学带了了更大的困惑。

youdao

The researchers said their findings were "clear-cut" and should lay the vaccine theory to rest.

BBC: NEWS | Health | Vaccine link to Aids 'dismissed'

The difficulty lay in translating the theory into action.

ECONOMIST: Idea

The defense had hoped to use Reichardt to lay the groundwork for its theory that the murders were committed by drug dealers pursuing Resnick, a self-described cocaine user.

CNN: O.J. Simpson trial: Debate over 'Fuhrman Tapes' heats up