离开了人才荟萃的中心，呼吸不到思想活跃的空气，不接触日新月异的潮流，我们的知识会陈腐，趣味会像死水一般变质。
Leave the talent center, breathe active air does not contact the change rapidly trend, our knowledge will taste like stale, stagnant metamorphism.
接触变质流体研究主要集中在含有易于发生流体-岩石反应的不纯碳酸盐岩地区。
Impure limestones with interstratified metachert layers where apt to happen fluid rock reactions are excellent for the study of contact metamorphic fluid.
伊敏五牧场区存在着从褐煤到贫煤完整的变质系列，其主要煤变质类型为接触变质。
There is a complete metamorphic series of coal from lignite to meager coal in Wumuchang area, Yimin, the main metamorphism type is contact metamorphism of coal.
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