99天:【小牛顿-昆虫爬虫】原野上的小飞机-蜻蜓(下)
May 2, 2016 - 09:14
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83天:【小牛顿-人文历史】划时代的书写工具-笔(下)
【3月底前送45元！】 快点击本页底部下载小牛顿APP吧。 后来人们又发明了一 种可换笔尖的沾水笔，使笔的功能增加了不少。1809年，英国的霍鲁修发明了将墨水装入金属管内的钢笔，只要一推动柱塞，墨水就会流下来，笔尖不用再常常沾墨水。
About This Episode
83天:【小牛顿-人文历史】划时代的书写工具-笔(下) is an episode from 【小牛顿】科学开讲咯(6-12岁) by 小牛顿. 【3月底前送45元！】 快点击本页底部下载小牛顿APP吧。 后来人们又发明了一 种可换笔尖的沾水笔，使笔的功能增加了不少。1809年，英国的霍鲁修发明了将墨水装入金属管内的钢笔，只要一推动柱塞，墨水就会流下来，笔尖不用再常常沾墨水。 The episode was published on Mar 15, 2016 and runs...
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Episode Details
Published Mar 15, 2016, 03:58 long, audio available.
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Questions About This Episode
What is 83天:【小牛顿-人文历史】划时代的书写工具-笔(下) about?
【3月底前送45元！】 快点击本页底部下载小牛顿APP吧。 后来人们又发明了一 种可换笔尖的沾水笔，使笔的功能增加了不少。1809年，英国的霍鲁修发明了将墨水装入金属管内的钢笔，只要一推动柱塞，墨水就会流下来，笔尖不用再常常沾墨水。
Where can I listen to 83天:【小牛顿-人文历史】划时代的书写工具-笔(下)?
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83天:【小牛顿-人文历史】划时代的书写工具-笔(下) is an episode from 【小牛顿】科学开讲咯(6-12岁) by 小牛顿.
How long is this episode?
This episode is 03:58 long.
When was this episode published?
This episode was published on Mar 15, 2016.
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Where can I listen to 83天:【小牛顿-人文历史】划时代的书写工具-笔(下)?
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Which podcast is this episode from?
83天:【小牛顿-人文历史】划时代的书写工具-笔(下) is from 【小牛顿】科学开讲咯(6-12岁) by 小牛顿.
What are the episode details?
Published Mar 15, 2016 and 03:58 long