... 轴扬声科技 DUAL CONCENTRICS 扬声气孔 loudspeaker hole 扬声的 soundconducting ...
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loudspeaker shaped gas hole morphology 喇叭形气孔形貌
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Investigation on the loudspeaker shaped gas hole morphology in tin bronze sleeves cast by centrifugal casting have been carried out by optical and scanning electron microscope observation.
在对锡青铜离心轴套铸件的喇叭形气孔形貌进行分析的基础上，归纳出喇叭形气孔的形成机理。
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