It is a new subject to explore and look for the methods and indexes to describe and depict the evolutional characteristics of seismic precursor complex picture.
探索、寻找描述、刻画地震前兆复杂图像演化特征的方法与指标，是地震预报研究的新课题。
The vibrational frequencies and vibrational modes of reactants, precursor complexes, transition state, successor complex and product were analyzed.
分析了反应物，前驱配合物，过渡态，后继配合物和产物的振动频率及振动模式。
Fibrous cobalt complex, a precursor of fibrous cobalt powders, can be prepared by coordination precipitation, using ammonia, oxalate and cobalt chloride as the raw materials.
以氨水、草酸和氯化钴为原料，通过配位沉淀制备得到了纤维钴粉前驱体———纤维状复杂钴盐粉末。
In contrast, in fact, complex partial seizures will last much longer period of time, this little episode may be a precursor before the onset of complexity.
相比来说，其实复杂部分性发作会持续更长的一段时间，这种小发作可能是复杂性发作之前的先兆。
In contrast, in fact, complex partial seizures will last much longer period of time, this little episode may be a precursor before the onset of complexity.
相比来说，其实复杂部分性发作会持续更长的一段时间，这种小发作可能是复杂性发作之前的先兆。
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