搜索结果: 1-1 共查到“凹凸棒石 occurring tourmaline”相关记录1条 . 查询时间(0.088 秒)
Tetrahedral boron in naturally occurring tourmaline
Tetrahedral boron naturally occurring tourmaline
2012/4/1
Evidence for boron in both trigonal and tetrahedral coordination has been found in B magic-angle-spinning (MAS) nuclear magnetic resonance (NMR) spectra ofnatural, inclusion-free speci-mens of alumin...