www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

USEUROPEAFRICAASIA 中文雙語Fran?ais
Home / Business

A brief history of four great Chinese inventions

By Ouyang Shijia | China Daily | Updated: 2017-07-03 08:14

A brief history of four great Chinese inventions

The four great inventions of ancient China refer to papermaking, printing, gunpowder and the compass. They are celebrated in China for their huge impact on the entire world.

China was the world's first country to make paper. Paper was made during the Western Han Dynasty (202 BC - 8 AD).

In 105, Cai Lun improved the papermaking method. He used worn-out fishnet, tree bark, bits of rope, and rags as raw materials, which could be easily found and bought at low cost. The invention and use of paper led to a revolution in the manufacture of writing materials, paving the way for the invention of printing technologies.

A brief history of four great Chinese inventions

Today's Top News

Editor's picks

Most Viewed

Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 亚洲一区天堂 | 九九久久精品视频 | 亚洲综合91 | 全免费a级毛片免费看不卡 全免费毛片在线播放 | 亚洲综合综合在线 | 国产99视频在线观看 | 日韩亚洲欧美在线 | 亚洲欧洲eeea在线观看 | 日韩欧美一级毛片在线 | 99精品久久久久久 | 黄a在线观看 | 午夜影院黄色 | 国产美女做爰免费视频软件 | 伊人久久大香线焦在观看 | 亚洲一级黄色毛片 | 久久精品在线视频 | 久久性精品 | 欧美成亚洲 | 亚洲精品人成在线观看 | 九九视频在线 | 毛片在线视频在线播放 | 老人久久www免费人成看片 | 国产裸体美女视频全黄 | 亚洲免费网 | 久久久久久免费精品视频 | 特黄特色三级在线播放 | 亚洲精品456在线播放无广告 | jul-179在线中文字幕 | 精品一区二区三区中文字幕 | 国产精品二区三区 | 免费观看一级欧美大 | 亚洲欧美第一 | 一级毛片免费观看不卡的 | 久久精品国产精品亚洲艾 | 久久91精品综合国产首页 | 亚洲精品一级片 | 一本色道久久爱 | swag国产精品一区二区 | 深夜福利成人 | 欧美老头老太做爰xxxx | 国产色手机在线观看播放 |