Mechanical Theoretics机械原理
study theoretics学习理论
evolution theoretics发展理论
design theoretics设计理论
circuit theoretics电路理论
theoretics teaching理论课
Theoretics Literature文学概论
Genetic Theoretics遗传学理论
theoretics course理论课
N（名词） the theory of a particular subject (某一学科的)理论 (Also called (less commonly) theoretic)