This was enough to launch their careers into the stratosphere.这足以让他们的事业平步青云了。Most of the chlorofluoromethanes reside in the lower stratosphere.大多数氯氟甲烷存留在平流层下部.Ozone is formed in the stratosphere and mesosphere by photoch...
采用高效液相色谱方法测定盐酸麻黄碱的含量.The content of ephedrine hydrochloride was determined by HPLC.采用旋光法测定盐酸麻黄碱含量.Optical rotation was used to determine the content of ephedrine hydrochloride.目的开发一种含有氯雷他定和麻黄碱的复方鼻腔给药新制剂.Aim To prepare a ...