1.The main causes resulting in this situation are intense compaction, pressure solution, cementation, filling, carbonatization and recrystallization, but...
还论证了地表样品识别埋藏古溶蚀的标志。
2.METHODS The hydroxyl groups of magnolol were protected using ketol reaction and the products were purified by recrystallization from hexane.
方法将厚朴酚两羟基用缩保护,再用正己烷重结晶分离纯化。
3.The calcite deposits are derived from the recrystallization of the carbonatite as a result of the weathering, eluviation of the fault, and the thermal contact activity and the metamorphism.
方解石矿有三个显著特征:即白色、块大、。
4.the sawtooth austenite boundaries become preferential nucleation sites of ferrite, and the sawtoothed ferrite boundaries contribute to the formation of ferrite recrystallization nucleus.