?十八烷基二甲基溴化铵
鄄十八烷基二甲基溴化铵(DOAB)、三?鄄十八烷基甲基溴化铵(TOAB)和蒙脱土(MMT)制备有机蒙脱土(OMMT),在采用热质量?
?汇流点
汇流点 confluence of rivers; doab; point of confluence; river junction; rivers conflu ..
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巴里河间地
"Pakistan-backed foreign fighters launch regular raids on Kamdesh, Barge Mattal, Doab and Waygal districts, " he told the BBC.
BBC: Afghanistan's Nuristan province 'at mercy of the Taliban'
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