| 摘要：正 越南中部地区最近发生“土地自燃”现象。据越南专家认为，越语专业论文，这一现象是由越战时期美国飞机投掷的磷弹引起的。据报道，去年9月底至10月初，越南义安省南坛县南上乡两片面积约1000平方米的土地起火燃烧，烟雾弥漫。当地群众发现，那里的土块被烧得通红。有人把土块冷却后洗去外层泥土，结果土块变成了类似“矾质”的深红色物体。这些“矾质”物体一经干燥，越语毕业论文，就会发生自燃。 Abstract：The phenomenon of "spontaneous combustion" occurred in central vietnam. According to Vietnam experts believe that this phenomenon is caused by the United States aircraft during the Vietnam war. It is reported, last year by the end of September to early October, Vietnam Nghe An province south of the altar of the South County township area of about 1000 square meters of land on fire and smoky. The local people found that there was burned red soil. Someone to wash away the outer earth clods after cooling, the clods into similar "alum quality" deep red objects. These "alum quality" object after drying, spontaneous combustion occurs. 引言：越南中部地区最近发生“土地自燃”现象〔据越南专家认为,这一现象是由越战时期美国飞机投掷的磷弹引起的。 据报道,去年9月底至10月初,越南义安省南坛县南上乡两片面积约1000平方米的土地起火燃烧,烟雾弥漫。当地群众发现,那里的土块被烧得通红。有人把土块冷却后洗去外层泥 |
