更多的基础研究通过注射治疗因子，目的在于治疗退变的椎间盘，然而，这些发现为动物研究的设计提供了指导方向。
As more basic science research is aimed at treating disc degeneration via injection of therapeutic factors, these findings provide guidance in design of animal studies.
两汉的天人感应学说是张衡从事科学研究的指导思想，它直接影响着张衡的科研深度和研究方向。
The theory of the interaction between Heaven and Man in Han Dynasty is the guiding ideology for Zhang Heng s scientific research.
在总结前人研究成果的基础上，指出了今后的研究方向，这对于中国的煤化工事业具有重要的指导意义。
According as the former research achievements of coal liquefaction residues, proposed its later research direction, and this have important indicating significance for home coal chemistry.
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