/-ʃənl; -ʃənl/ adj (fml 文)
1 of, for or used in operations 操作的; 行动的; 手术的; 公司的; 军事行动的; 交易上的; 运算上的
*early operational problems行动初期的问题
* operational costs/expenditure, ie money needed for operating (machines, etc) 操作成本[费用].
2 ready for use; ready to act 即可使用的; 即可行动的
*The telephone is fully operational again. 电话又完全可以使用了.
* The squadron is not yet operational. 飞行中队尚未能马上行动.

adj
[not before noun]
working and ready to be used
　The boat should be operational by this afternoon.
　The new system became operational in March.
　Our main offices are now fully operational .
→operative¹ (1)
[only before noun]
relating to the operation of a business, government etc
　Patco accepted full responsibility for operational management.
>operationallyadv