Art historians and residents for years have complained that the archaeological sites at Pompeii, just south of Naples, were in a state of decay and needed regular maintenance.

艺术史学家以及当地居民就位于那不勒斯南部的庞贝的考古遗址受到腐蚀、需要经常维护一事已抱怨多年。

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Therefore, you need to define a maintenance process very early in the project, so that it is updated and kept in sync with any changes made to the sites which the portal is intended to replace.

因此，您需要在项目的早期定义维护流程，以便更新库存，并使其能够与对门户预计要替换的站点进行的任何更改保持同步。

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In another sector, KND showed some contactors replaced in various maintenance sites on the territory.

在另外一个区域，凯恩帝数控系统显示此范围内的不同维护点的一些接触器被替换了。

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Some 142 staff have been kept on at Scottish Coal sites, mainly in maintenance roles.

BBC: Open cast mining

The wreaths' backbones are made up of boxwood cuttings from a landscape maintenance company that works on historical sites such as the U.S. Naval Academy in Annapolis, Md.

WSJ: Greenery, With Hints of the Forest and Desert