溶洞水
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岩溶水
cavern water system 岩溶水系
fissure-cavern water 裂隙溶洞水
cavern water cushion 洞罐水垫层
water conveyance cavern 输水洞
underground water-sealed cavern 地下水封石洞油库
underground water sealing cavern 地下水封岩洞油罐
·2,447,543篇论文数据，部分数据来源于NoteExpress
In some cases, sunlight shines through holes in the cavern ceiling, illuminating the beautifully clear, blue-tinted water giving it an otherworldly feel.
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