There are three ski lifts in operation.

有3辆滑雪缆车在运行。

《柯林斯英汉双解大词典》

The system has been in operation for six months.

这个系统已经运行六个月了。

《牛津词典》

There are more than 130 currently in operation.

目前有超过130座（核电站）在运行。

youdao

Pumps that were used to keep the mine dry have not been in operation since its closure.

VOA: special.2009.07.21

Or take this value out of memory, run it through some other simple operation, stick it back in memory.

或者从记忆存储器中取出一个结果，在类似的操作中运行，再插回到存储器中。

麻省理工公开课 - 计算机科学及编程导论课程节选

1%10 So if you actually do in a program 11 percent 10, 1 what you'll get back is 1 because that is in fact the remainder of that arithmetic operation.

如果在编程里就是，返回,因为1是这个计算式的余数。

哈佛公开课 - 计算机科学课程节选

Right across Wilson St, the Hotel La Rose has been in operation for more than 100 years.

BBC: For the birds: Hitchcock��s California

China currently has 13 nuclear power stations in operation, while another 27 plants are under construction.

FORBES: China's Next Inflation Problem: Energy

On Wednesday they were back in operation but with an eye on the weather.

BBC: Schools braced for fresh snowfall