The Pre - cambrian alumino - siliceous slate is the host rock of antimony deposit inHunan.湖南前寒武系的 硅铝 质板岩是锑矿主要赋矿岩性.Antimony adds to the rigidity of the casting.锑能增加铸件的硬度.Antimony abounds in out country.我国盛产锑.The percentag...
旁注在左页边距放置的框架的样式.A style for placing a frame beside the left margin.因此他的旁注不是很有揭示性的.So his marginalia are not very revealing.她坐在他的书房里阅读他的书籍,并思索着他在书页上写下的旁注.She sat in his study reading his Books and pondering his marginal n...