1、Catenane is a type of compound in which one ring is threaded through another.
2、The synthesis of catenanes has attracted significant attention in the field of supramolecular chemistry.
SHOW FULL COLUMNS FROM `tool_word` [ RunTime:0.001251s ]
SELECT `id`,`word`,`british`,`american`,`jbjs`,`wlsy`,`cx`,`lz` FROM `tool_word` WHERE `switch` = 1 AND `id` = 14465 LIMIT 1 [ RunTime:0.000408s ]
UPDATE `tool_word` SET `views` = `views` + 1 WHERE `id` = 14465 [ RunTime:0.005017s ]
SELECT `id`,`word` FROM `tool_word` WHERE `id` IN (81919,83109,69683,50504,21530,29310,86872,18597,34411,66761,53095,51629,33316,37969,25354,30170,94761,42659,77497,103925,58116,71711,19807,71296,59415,28537,70078,93340,14147,16338) AND `switch` = 1 ORDER BY `id` DESC [ RunTime:0.002753s ]
SELECT `id`,`word` FROM `tool_word` WHERE `id` < 14465 AND `switch` = 1 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000426s ]
SELECT `id`,`word` FROM `tool_word` WHERE `id` > 14465 AND `switch` = 1 ORDER BY `id` LIMIT 1 [ RunTime:0.000753s ]