theoretical

形容词 theoretical:

1. concerned primarily with theories or hypotheses rather than practical considerations
   同义词：theoretic
2. concerned with theories rather than their practical applications

1. The old professor had presided over a seminar for theoretical physicists.
   老教授主持了一次理论物理学家的研讨会。
2. Japanese-born physicist. He shared a1973 Nobel Prize for theoretical advances in the field of solid-state electronics.
   江崎，玲于奈生于1925日本裔物理学家，由于他在固态物质电子学理论上的进展获得了1973年诺贝尔奖
3. It's a theoretical possibility, but I don't suppose it will happen.
   这是一种理论上的可能性，但我认为这种情况不会发生。
4. This book is too theoretical; I need a practical one.
   这本书理论性太强，我需要一本实用的。