div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=55bacf3abb61ebf23e8b4583htmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: 工程学基础 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer202206242055bacf3abb61ebf23e8b4583html5thumbnails1jpg width=140 height=200 divp工程学基础p p拆卸音乐盒pdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=55bacf3abb61ebf23e8b4583htmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: 工程学基础 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer202206242055bacf3abb61ebf23e8b4583html5thumbnails2jpg width=140 height=200 divp音乐盒p p次音乐盒里面就一个装置如图pdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=55bacf3abb61ebf23e8b4583htmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: 工程学基础 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer202206242055bacf3abb61ebf23e8b4583html5thumbnails3jpg width=140 height=200 divp音乐盒的发条pdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imageimg data-url=55bacf3abb61ebf23e8b4583htmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: 工程学基础 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer202206242055bacf3abb61ebf23e8b4583html5thumbnails4jpg width=140 height=200 divp齿轮和发音的铁片pdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imageimg data-url=55bacf3abb61ebf23e8b4583htmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: 工程学基础 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer202206242055bacf3abb61ebf23e8b4583html5thumbnails5jpg width=140 height=200 divp发条里的铁条弹簧p p圆通上的凸出来的点是用来与发音铁片接触的 pdivdiv class=ts-pagebutton class=gotoPage data-page=6Page 6button div class=ts-imageimg data-url=55bacf3abb61ebf23e8b4583htmlpage=6 data-page=6 class=ts-thumb lazyload alt=Page 6: 工程学基础 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer202206242055bacf3abb61ebf23e8b4583html5thumbnails6jpg width=140 height=200 divp各齿轮间的合作pdivdiv class=ts-pagebutton class=gotoPage data-page=7Page 7button div class=ts-imageimg data-url=55bacf3abb61ebf23e8b4583htmlpage=7 data-page=7 class=ts-thumb lazyload alt=Page 7: 工程学基础 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer202206242055bacf3abb61ebf23e8b4583html5thumbnails7jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=8Page 8button div class=ts-imageimg data-url=55bacf3abb61ebf23e8b4583htmlpage=8 data-page=8 class=ts-thumb lazyload alt=Page 8: 工程学基础 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer202206242055bacf3abb61ebf23e8b4583html5thumbnails8jpg width=140 height=200 divp运做视频pdiv