| 摘要 |
A cooling tower including a jacket composed of a non-self-supporting shell, a spacer ring and a ground support between which the shell is stretched, a mast composed at least in part of a metallic material, a main lifting ring attached to the mast, and cables connected between the spacer ring and the main lifting ring for supporting the spacer via the main lifting ring, is further provided with an auxiliary lifting ring attached to the mast, and the mast, the main lifting ring and the auxiliary lifting ring are each provided with a row of spaced bores, with the bores of each lifting ring being located adjacent the respective bores of the mast, and the bores of the mast extending at regular intervals from the top of the mast and over a significant portion of its height.
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