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1.There are three omnibus bar cave on the elevation of 186.95m between main power house and main transformer cave, whose section is 5.90m 6.75m. The distance between sketch of gate hole is 17.50m.
主厂房与主变洞之间在高程186.95m布置3条母线洞，断面为5.90m×6.75m，城门洞型，间距为17.50m。收藏指正
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