变质程度 meaning in English
degree of metamorphism
grade of metamorphism
metamorphic grade
metamorphicgrade
Examples
- Characteristics in laser raman spectrum of different ranks of coal
不同变质程度煤的激光拉曼光谱特征 - Oil / source correlation shows fengcheng formation ( pjf ) and xiawuerhe formation ( p2w ) are main source beds
95之间，说明该区为中等变质程度地层水分布区。 - There are two kinds of rock mass seen in the region , one is jiaodong group to the moderate metamorphose extent , another one is the granite
区内出露岩性主要有两大类，一类是中深变质程度的胶东群，另一类是花岗岩。 - In accordance with the main contradictions between high deterioration degree of coal and low permeability of coal bed , this paper predicts high permeability region by use of new technique and methods including stress field , curvature analysis and major stress difference analysis
针对沁水盆地煤变质程度高、煤层渗透率普遍较低的主要矛盾，利用新技术、新方法，利用应力场、曲率分析方法和主应力差分析方法预测高渗区。 - The results show that there is distinct relation between reflectance of vitrinite and coal classification , though this correspondence is relatively complex , especially in low - medium metamorphic bituminous stage where coals with same sometimes can be divided into different classes
研究表明：镜质组反射率与煤种之间的关系较复杂，特别是在中低变质烟煤阶段，相同变质程度煤往往归属于不同煤种，受煤岩组成和还原程度的影响较大。