理论的英文：
theory

a tenable theory
站得住脚的理论

Resonance theory
共振理论

Theoretical linguistics
理论语言学

tried to interconnect the two theories.
试图融汇贯通这两个理论

qualitative theory in celestial mechanics
天体力学定性理论

C. Arbitrage Pricing Theory
c.套利定价理论

a tenable theory.
一个站得住脚的理论

Quantification theory
量词化理论

stochastic control theory
随机控制理论

hierarchical control theory of largescale systems
大系统递阶控制理论

configuration theory
完形说

Marxist theory will advance and so will socialist theory.
马克思主义要发展，社会主义理论要发展

Develop a new theory by the synthesis of several earlier theories
综合以前的几种学说而创立的新学说.

The Implicit Cognition Theory is related to the tacit knowledge theory.
内隐认知理论是与缄默知识理论相联系的。

Our theory countered his.
我们的观点和他的相反。