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1·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》

2·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》

3·There are more than 130 currently in operation.

目前有超过130座（核电站）在运行。

4·Temporary traffic controls are in operation on New Road.

新路正在实施临时交通管制。《牛津词典》

5·A contraflow system is in operation on this section of the motorway.

这段高速公路的一侧正在实行双向行驶。《牛津词典》

6·Prisons are no longer the grim forbidding places they used to be. Social welfare systems are in operation in many parts of the world.

监狱不再是过去那种可怕的令人生畏的地方。

7·Soon afterward, the Federal government drastically cut down its expenditures for this purpose and later abolished them, causing a sharp drop in the number of nursery schools in operation.

很快，联邦政府就彻底地切断了用于此类目的的开销，后来直接取消了这项开支，这导致了营业中的托儿所数量锐减。

8·The guerrilla units mysteriously appear and disappear in operation behind enemy lines, without the enemy's being able to do anything about them.

游击队在敌人后方神出鬼没地活动， 敌人无奈他何。《新英汉大辞典》

9·Figure 1 shows — yesno in operation.

图1展示运行中的——yesno。

10·Ten soldiers have died in Operation Panther's Claw.

已有10名士兵在黑豹利爪行动中死亡。