介绍了一种以环氧树脂e - 44为原料制备煤岩光片黏结剂的新方法及应用。
A new method for preparing optical thin slice of coal maceral bonder made of epoxy resin E-44 and its application are introduced.
摄影师岩合光昭使用了低角度摄影，从而使马赛族人的身体在这张照片里显得富有魅力。
Photographer Mitsuaki Iwago used a low angle and the body of the Maasai tribesman to add drama to this photograph.
本文阐述珠光岩体中晶质铀矿的物理化学特征、产出位置和共生组合。
Described in this paper are the physicochemical characteristics, occurrence, locality and paragenesis of uraninite in the Zhuguang mass.
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