They shout and gesticulate tremendously but cannot agree.他俩指手划脚,大吵大闹,相持不下.Now, we should see for ourselves if we gesticulate more righty than lefty.现在我们需要看看我们人类自己是否用右手做手势的时候多于用左手的时候.Foreign reporter said that while uses ...
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...