本文总结了巴西两个最重要的滑石产地,Parana和Bahia区中滑石矿床的地质特征,并探讨了这些矿床的可能成因。巴西的滑石在世界滑石......

铅锌尾矿是一类重金属含量极高,对植物生长产生毒害的生境.盆栽实验的结果显示,香根草和百喜草在纯尾矿或由尾矿和垃圾组成的混合......

Applying dispersants to spilled crude oil results in an oil in water dispersion of microscopic oil droplets that soon di......

Prosthechea is a neotropical genus, belonging to the family Orchidaceae. The Brazil recorded 32 species of the genus of ......

<正> 中间宿主螺的生态因素和对易感人群不利的环境与血吸虫病持续存在和扩散有关。在巴西血吸虫病流行地区进行的研究表明:中间宿......