| 摘要：正洞穴通常被认为是令人生畏并且危险的地方，但是位于越南广平省的“韩松洞”却因其内生雨林河道，越南语论文，景色壮观而令人向往。据了解，越语论文范文，“韩松洞”形成于200~500万年前，由流水侵蚀地底石灰岩影响而成，并终致山中顶部石块塌陷，形成了巨大的内部空间。洞穴宽超过200米，高超过150米，几近9公里长，是世界上最大的洞穴，如今仍 Abstract：Is the cave is generally considered to be a formidable and dangerous place, but is located in Quang Binh Province, Vietnam, "hang son Doong" because of the living rainforest River, spectacular scenery and yearning. It is understood that the "Han Songdong" formed in 200~500 million years ago, by the erosion of water to the bottom of the role of limestone, and eventually to the mountains at the top of the stone collapse, forming a huge internal space. More than 200 meters wide, more than 150 meters high, almost 9 kilometers long, is the world's largest cave, and now still 引言：洞穴通常被认为是令人生畏并且危险的地方,但是位于越南广平省的“韩松洞”却因其内生雨林河道,景色壮观而令人向往。据了解,“韩松洞”形成于200~500万年前,由流水侵蚀地底石灰岩影响而成,并终致山中顶部石块塌陷,形成了巨大的内部空间。洞穴宽超过200米,高超过150米,几近9公 |
