come into operation

汉语翻译

例句：

1. The new power station has already come into operation.
   这个新的发电站已经开始运转。
2. When does the plan come into operation?
   这项计画什麽时候实施?
3. The new schedule come into operation on June1st.
   新的日程表是从６月1日开始实行的。
4. When does the new law come into operation?
   这项新法律何时生效？