本论文运用双差法开展了三方面的研究工作。
The double difference relative location approach (DD) is applied and investigated in this paper in the following three respects.
为了对减震榫的减震性能做更深层次的理解，本文深入进行了三方面的研究工作。
In order to make a deeper understanding of shock absorber, the following aspects have been done in this dissertation.
为了对减震榫的减震性能做更深层次的理解，本文深入进行了三方面的研究工作。
In order to make a deeper understanding of shock absorber, the following aspects have been done in this dissertation.
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