Wantzel in the paper of 1837 showed that the general angle could not be trisected . 汪载尔在1937年的文章中证明了一般的角不能三等分。
2.
Trisected by the borders of three nations venezuela , guyana , and brazil , the mountain s isolated table - top summit is a treasure trove of unique , separately evolving species 探险队的直升机前赴罗赖马山。这座平顶山接壤委内瑞拉圭亚那及巴西的边界，山顶藏著独特又独自演化的物种。
3.
The thesis lists five natures of the natural resources , on the base of which it discusses the merits and defects of the monopoly model and binary model , then presents the necessity of constructing a “ trisect model ” of real right system of natural resources . by making the comparison of nature and the objects between the civil real right system and the real right system of natural resources , this article believes that the real right system of natural resources , the need to implement the sustainable development strategy , is a new independent social right different from the civil real right system 本文深入的分析了自然资源的五大特征(属性) ,并以此为基点批判“一元”模式和“二元”模式的弊端与缺陷,提出构建“三元”模式自然资源物权制度的必然性;通过民事物权与自然资源物权在性质与客体两方面的比较,认为自然资源物权是独立于民事物权的新型权利,是环境危机背景下的可持续发展战略的必然要求,属于社会权,其制度构建应有别于作为私权代表的民事物权。
