in operation

phr

• ① 在运转[活动]中;在实施中,生效中
  • The power plant will be in operation tomorrow.这座发电厂将在明天运转。
  • The rule is no longer in operation.该规则已不再有效。
  • The new system has been in full operation since January.新制度自元月起已全面实施。