英 [ˌθɪəˈretɪk(ə)l] 美 [ˌθiːəˈretɪk(ə)l]
adj. 理论的；理论上存在的，假设的[1]
柯林斯英汉双解大词典
theoretical /ˌθɪəˈrɛtɪkəl/ CET4 TEM4
1.ADJ A theoretical study or explanation is based on or uses the ideas and abstract principles that relate to a particular subject, rather than the practical aspects or uses of it. 理论的
2.ADJ If you describe a situation as a theoretical one, you mean that although it is supposed to be true or to exist in the way stated, it may not in fact be true or exist in that way. 理论上的[1]
theoretical basis 理论基础
theoretical foundation 理论基础
theoretical model 理论模型
theoretical value 理论值
theoretical level 理论水平
theoretical physics 理论物理
theoretical derivation 理论推导