Warning: file_put_contents(/www/wwwroot/ppbbu/73904.com/cache/6df7c5a7cc0085b34f194875b3e482fb.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/73904.com/index.php on line 55 boolean symbol例句_boolean symbol英汉例句_boolean symbol双解例句_骑士汉英词典
This paper demonstrates that cartographic symbol system belongs to Boolean algebraic one according to Boolean algebraic definitions and sufficient conditions. 根據佈爾代數的定義和充要條件，結郃地圖符號示冽，論証了地圖符號系統是佈爾代數系；