Branch h crystal 树枝晶
This article tries to feel about the method and graft parameter of preparing petroleum naphthalene by the experiment of the branch crystal system to make tar naphthalene.
本文通过分部结晶法制取石油萘的实验，摸索制取石油萘的方法与工艺参数。
The investigation of the surface anchoring energy for nametic liquid crystals always is an important branch of the liquid crystal physics.
向列液晶表面锚定能的研究是液晶物理学的一个重要分支。
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