civilian maintenance是什么？

我认为应该是监狱中的非监狱方的平民维修队伍。也就是监狱外边的平民受雇到监狱中从事一些维修工作。civilian maintenance supervisor可以肯定不是服刑者。

下面是一些罪犯从监狱出逃的新闻：
It was one of the biggest prison escapes in Texas history. Seven inmates overpowered and restrained nine civilian maintenance supervisors, four correctional officers and three uninvolved inmates. They made their way out of the Connally Unit Prison and eluded police for more than a month.

美国军队一般都有civilian maintenance team，包括伊拉克。这种维修队伍成员不属于军方，但是为军方提供维修服务。

参见下面的新闻：
Jul 26, 2008

A civilian maintenance team assembled at Marine Corps Logistics Base-Albany leaves for Iraq.
Despite the efforts of Katie Benjamin, 3, six civilian workers departed Maintenance Center Albany for Iraq Tuesday, to service Mine Resistant Ambush Protected vehicles, or MRAPs, for 6-12 months.

然后可以看一下下面的结案报告，该报告说明一个服刑者在监狱被指派working in a maintenance job， 他遇到了 four civilian maintenance workers，随后的语句中，标明，他接近的four civilian maintenance workers 是who