单萜类化合物是植物挥发油的主要成份.The monoterpenoids are dominant components in the " volatile oils " of plant species.目的: 研究腺点金丝桃挥发油成分及相对含量.AIM : To study the constituents of Hypericum Scabraum. its percentage composition.方法: 采用水蒸气蒸馏法从...
他是他可怜的老母亲的唯一赡养者.He is the only support that his poor old mother has.亨特是他一家的主要赡养者.Hunter is the chief support of the family.依靠别人的被赡养者不能独立生活.The dependent dependant cannot live independently....