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"How do we distinguish sounds (continued)" Sound and environment PPT courseware
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2023-09-25 18:20:54
Learn to listen, understand PowerPoint download
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2019-01-31 01:00:00
If sounds have memories
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"Noise and Environmental Protection" Acoustic Phenomenon PPT Courseware
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2023-10-05 09:34:00
"Noise and Environmental Protection" Acoustic Phenomenon PPT Courseware
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"Listen to Mom Talk about the Past" PPT courseware
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"You Will Definitely Hear It" PPT courseware download
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"The World's First Stethoscope" PPT courseware
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Colored squares thank you for listening to the PPT conclusion
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2020-06-06 17:10:02
"How Do We Distinguish Sounds" Sound and Environment PPT Courseware 2
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"Application of Sound Phenomenon in Science and Technology" Sound Phenomenon PPT Courseware
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"How Sound is Produced" Various Sound PPT Courseware
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"How Sound is Produced" Various Sound PPT Courseware
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"How do we distinguish sounds (continued)" Sound and environment PPT courseware 2
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"Application of Sound Phenomenon in Science and Technology" Sound Phenomenon PPT Courseware
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"The World's First Stethoscope" PPT Courseware
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2019-01-24 21:00:00
"The World's First Stethoscope" PPT Courseware 3
下载 785 次
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"The World's First Stethoscope" PPT Courseware 2
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2019-01-23 11:00:00
"You will definitely hear" PPT courseware download 2
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2019-02-21 22:00:00
UI style holding a stethoscope PPT background picture
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2019-03-19 05:00:00
"Sounds of Nature" PPT courseware
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2023-09-25 17:55:38
"The Sound of Nature" PPT download
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"The Generation and Propagation of Sound" PPT
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"Strength and Weakness of Sound" PPT Courseware 2
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"The Sound of Nature" PPT download
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"Who Can Spread the Sound" PPT courseware
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"Who Can Spread the Sound" PPT download
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"The Occurrence and Propagation of Sound" PPT
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"Noise and Environmental Protection" Acoustic Phenomenon PPT Courseware 2
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"Noise and Environmental Protection" Acoustic Phenomenon PPT Courseware 4
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"Hazards and Control of Noise" Acoustic Phenomenon PPT
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"Application of Sound Phenomenon in Science and Technology" Sound Phenomenon PPT Courseware 3
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"Application of Sound Phenomenon in Science and Technology" Sound Phenomenon PPT Courseware 4
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"Noise and Environmental Protection" Acoustic Phenomenon PPT Courseware 3
下载 214 次
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"Application of Sound Phenomenon in Science and Technology" Sound Phenomenon PPT Courseware 2
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"How Sound is Produced" Various Sounds PPT Courseware 3
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"Ultrasound and Infrasound" The World of Sound PPT Courseware 2
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"Noise and Environmental Protection" Acoustic Phenomenon PPT Courseware 4
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"Exploring the Pitch Changes of the Ruler" Sound PPT Courseware
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"Exploring the Pitch Changes of the Ruler" Sound PPT download
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"Noise and Environmental Protection" Acoustic Phenomenon PPT Courseware 3
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"Noise and Environmental Protection" Acoustic Phenomenon PPT Courseware 2
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"Noise and Environmental Protection" Acoustic Phenomenon PPT Courseware 3
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"Application of Sound Phenomenon in Science and Technology" Sound Phenomenon PPT Courseware 3
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"Application of Sound Phenomenon in Science and Technology" Sound Phenomenon PPT Courseware 4
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"How Sound is Produced" Various Sounds PPT Courseware 3
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"Application of Sound Phenomenon in Science and Technology" Sound Phenomenon PPT Courseware 2
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"How Sound is Produced" Various Sounds PPT Courseware 2
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