文学 情态 释 modal operator 情态算子 模态逻辑中表示模态的算子，主要指“必然”（可用符号□或字母L表示）和“可能”（可用符号◇或字母M表示）。又称模态词、模态连接词。
modal operator 模态算子
人工智能 人工智能逻辑 释文 modal operator 模态算子
- the permanent polluted sediment yard
- The Persian Augury
- The Persians
- the personal expedition ceremony and the hunting visit ceremony
- The Phantom of the Opera
- The Ph.D Forum on archives in China
- The Phenomenology of the Social World
- The Philadelphia Inquirer
- The Philadelphia Negro: A Social Study
- The Philadephia Story
- The Philippine Star
- the Phillips curve
- The Philosophy of Art
- The Philosophy of the Revolution
- The Phoenix Singing on the Qishan Mountain
- The Phonetic System in Guangyun
- The Phonetic System in Qieyun
- the Phonology of Qieyun
- the Photocopy Collection on Folklore and Folk Literature
- The Photographers' Gallery
- The Photographic Society of Peking
- The Photography of Ci Studies in the Qing Dynasty
- The Photography Salon Society of Macao
- The Photojournalist Society of China
- the physical-archives protection method