By employing the method of Experimental Phonetics, the author explores the properties of tonal duration of Dalian dialect, based on acoustic data of the old and the new generations.
笔者运用语音实验的研究方法，考察了大连方言声调新、老两派的单字调和双字调在调长方面的声学特征。
This paper reports study results of these new acoustic data.
本文报道了对上述声学资料的研究结果。
At the same time, more and more attention is paid to the underwater acoustic data acquisition system.
与此同时，水声数据采集系统也受到越来越多的关注。
Based on comparison of acoustic data logged in different conditions of cementation, casing and borehole, the applicable condition and limitation of through-casing acoustic logging are summarized.
对比了在不同水泥胶结质量、套管状况和井眼条件下的套管井与裸眼井声波测井资料，归纳出了过套管声波测井的使用条件和局限性。
Based on comparison of acoustic data logged in different conditions of cementation, casing and borehole, the applicable condition and limitation of through-casing acoustic logging are summarized.
对比了在不同水泥胶结质量、套管状况和井眼条件下的套管井与裸眼井声波测井资料，归纳出了过套管声波测井的使用条件和局限性。
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