synchronising

1. 1.

   -ing form of synchronise；v happen at the same time；v make (motion picture sound) exactly simultaneous with the action；v arrange or represent events so that they co-occur；v operate simultaneously；v cause to indicate the same time or rate；v make synchronous and adjust in time or manner

   (synchronise 的现在分词) vi. (使)同时发生；(使)整步；使在时间上一致；校准

校准；把钟表拨至相同的时间；把...并列对照