造纸技术 meaning in Chinese

paper technology

Technical association of the pulp and paper indust 0734 - 1415
亚洲纸浆和造纸技术与市场
In the background are formulas for powder making . the $ 5 stamp portrays cai lun of the eastern han ( ad 25 - 220 ) who developed papermaking
五元邮票以造纸术为主题，表扬东汉（ 25 - 220年）蔡伦对改良造纸技术的贡献。
In 105 a . d . , drawing on previous practices from others before him , cai lun invented paper by using tree bark , hemp , and pieces of cloth
公元105年，蔡伦总结了前人的造纸技术，用树皮、麻头、旧布等为原料，造出了可以写字的纸。