原生结构 meaning in English

original texture

Study on pyrogenation hydrocarbon generation character of deformed coal and undeformed coal
构造煤与原生结构煤的热解成烃特征研究
The textures of myanmar jadeitites are classified into three major types according to the forming stages and the petro - graphic features : primary texture , deformed - metamorphosed texture and post - filled texture , and their gemmological implications are discussed
依据其形成阶段及岩相学特征将缅甸硬玉岩的结构首次分为三大类：原生结构、变形变质结构及后生充填结构。