_preview-1.jpg "圆珠笔究竟有多难造？它的工作原理是什么？堪称教科书式的设计 from 唳膏唳曕唳唳栢唳唳嗋Π 唳呧Κ唰佮Π 唳膏Π唳距Ω唳班 唳氞唳︵唳氞唳︵唳Ο唳监唳班唳唳︵唳唳唳唳Α唳匡拷 dot c Video Screenshot Preview 1")
Gallery_preview-3.jpg "圆珠笔究竟有多难造？它的工作原理是什么？堪称教科书式的设计 from 唳膏唳曕唳唳栢唳唳嗋Π 唳呧Κ唰佮Π 唳膏Π唳距Ω唳班 唳氞唳︵唳氞唳︵唳Ο唳监唳班唳唳︵唳唳唳唳Α唳匡拷 dot c Video Screenshot Preview 3")
Gallery_preview-hqdefault.jpg "圆珠笔究竟有多难造？它的工作原理是什么？堪称教科书式的设计 from 唳膏唳曕唳唳栢唳唳嗋Π 唳呧Κ唰佮Π 唳膏Π唳距Ω唳班 唳氞唳︵唳氞唳︵唳Ο唳监唳班唳唳︵唳唳唳唳Α唳匡拷 dot c Video Screenshot Preview hqdefault")
GalleryPlay Video:
(Note: The default playback of the video is HD VERSION. If your browser is buffering the video slowly, please play the REGULAR MP4 VERSION or Open The Video below for better experience. Thank you!)
Jump To Video Parts
⏲ Duration: 2 minutes 55 seconds
👁 View: 444 times
Play Audio:👁 View: 444 times
Description:
科普记
科普记
Share with your friends:
Whatsapp | Viber | Telegram | Line | SMS
Email | Twitter | Reddit | Tumblr | Pinterest
Related Videos
_0220-zng-zhfn-zhnghsk5-advanced-chinese-vocabulary-with-sentences-and-grammar.webp "每日中文课Free To Learn Chinese")
0220.怎么用【总之zǒng zhī】【反正fǎn zhèng】HSK5 Advanced Chinese Vocabulary with Sentences and Grammar【地道中文口语】
⏲ 10 minutes 35 seconds 👁 6.4K
_00-124.webp "雅桑了嗎")
_10.webp "北京广播电视台科教频道 BRTV Science Channel")
_.webp "贤宝宝")
_newton39s-absolute-time-and-space-michelson-and-morley39s-9234aether9234-proposal.webp "李永乐老师")
⏲ 7 minutes 49 seconds 👁 64.9K
_what-is-antimatter-defeating-nuclear-energy-as-the-ultimate-energy-source-of-the-universe.webp "李永乐老师")
⏲ 17 minutes 20 seconds 👁 822.9K
_mr-li-yongle-helps-you-to-learn-the-circle39s-area-formula-amp-principles-of-calculus-in-4-mins.webp "李永乐老师")
⏲ 4 minutes 30 seconds 👁 106.3K
_.webp "妈咪说MommyTalk")
_0220-zng-zhfn-zhnghsk5-advanced-chinese-vocabulary-with-sentences-and-grammar.jpg)
_00-124.jpg)
_10.jpg)
_.jpg)
_newton39s-absolute-time-and-space-michelson-and-morley39s-9234aether9234-proposal.jpg)
_what-is-antimatter-defeating-nuclear-energy-as-the-ultimate-energy-source-of-the-universe.jpg)
_mr-li-yongle-helps-you-to-learn-the-circle39s-area-formula-amp-principles-of-calculus-in-4-mins.jpg)
_.jpg)
![[+]](/images/menu.gif){kind=small}