虽然现在它是一个海蚀洞穴，但其历史是由火山活动造就的天然熔洞，火山活动给它留下了一个与众不同的人造外貌。
Though it is a sea cave now, its history is volcanic in nature, and left it with an unusually man-made appearance.
对玻璃池窑池壁、小炉口、流液洞、加料口等处的电熔锆刚玉砖侵蚀特征进行了研究。
This paper researched the corrosion features of the fused zirconia corundum blocks which fixed in the tank wall, port mouth, throat, dog house of glass tank furnace.
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