求翻译：对于工艺站场，由于保护区域内保护对象繁多，地下金属结构复杂，分布范围小，干扰和屏蔽现象严重，使得站场区域阴极保护具有如下特点是什么意思？

Has the following characteristics for the craft station, due to the protection of objects within the protected area and the complexity of the structure of the underground metal, small distribution range, interference and shielding serious, making the station area cathodic protection

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Regarding craft station yard, because protects in the region the protection object to be many, the underground metal structure is complex, the distributed scope is small, the disturbance and the shield phenomenon are serious, enable the station yard region cathodic protection to have the following c

For processing station, due to the protection of the protected object within the region are numerous, complex of underground metal structure, distribution small, jamming and shielding phenomenon seriously, making regional cathodic protection station has the following features

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