| 摘要 |
An apparatus for monitoring a cathodic protection system on a structure which is positioned in water such that a portion of the structure is beneath the surface of the water, such apparatus comprising: an insulating means positioned adjacent to the structure below the surface of the water; a metallic body positioned adjacent to the insulating means so that the body is electrically insulated from the structure; means for electrically connecting the body to the structure at a point above the surface of the water; and means for measuring the amount of current flowing through the electrical connecting means.
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