upgrading and updating
英
美
upgrading and updating的用法和样例:
例句
- Fourth, consumer goods have been updated and upgraded.
四是消费品档次升级换代。
- Rapid replacement and updating of various fire-control radars followed the breakthrough of airborne AESA technlogy.
机载相控阵技术的突破,引发了多种型号战斗机的火控雷达升级换代。
upgrading and updating的相关资料:
临近单词