色窝窝最新网址免费视频国产一区,国产一区二区在线免费播放,国产色15在线影音先锋在线看,欧美AAA片免费观看免费观看

Service hotline:
0532-87626730/dt>
Column navigation
CONTACT US
TEL
0532-87626730
TEL:0532-87626730
FAX:0532-87622891
Address:No. 8, Huali Road, Jiaozhouwan comprehensive free trade zone, Hetao street, Chengyang District, Qingdao
Safe Metal
Author: Time:2019-12-07

- "safe metal" -

No one knows when human beings discovered the metal silver, but our ancestors have long known that this metal has magical purification ability: 2500 years ago, Cyrus the great, the king of Persia, ordered all his troops to use silver pots to hold water, because the water in silver containers is cleaner than that in other containers. In ancient Rome, silver nitrate was used as a medicine. The Pharmacopoeia published in ancient Rome in 69 B.C. In 78 A.D., Pliny the elder, in his natural history, described silver's properties in this way: "it has therapeutic effects Especially in promoting wound healing

The wealthy Romans used silver wine glasses and silver utensils every day, not only because silver was a symbol of wealth: aristocratic families used silver spoons to feed their babies, which they believed could get rid of the disease. "At that time, people didn't know the bactericidal mechanism of silver." Said A. Bart flick, a plastic surgeon and trauma recovery expert in Clayton, Georgia. Frick, who often uses silver for local trauma treatment, said: "it is clear that silver is only good for people's health, and there is no harm in terms of the situation at that time. So people see silver as a "safe metal."

Nowadays, silver is widely used, for example, it is used to prevent eye infection of newborn, treat burns, and produce ionizing rinse water.

——Translated by Susan kitcbens, Guo Yanhang


百度 

Copyright @ 2019-2024 Qingdao Hengtong X-Silver Speciality Textile Co.,Ltd. All Rights Reserved. 版權所有 備案號:魯ICP備09105206號-1
TEL:+86-0532-87626730 +86-0532-87651000 +86-0532-87652578 +86-0532-68698277 FAX:0532-87622891
Address:No. 8, HuaLi Road, Jiaozhouwan comprehensive free trade zone, Hetao street, Chengyang District, Qingdao

主站蜘蛛池模板: 许昌市| 建平县| 崇义县| 高安市| 句容市| 德清县| 青冈县| 高雄市| 宁蒗| 进贤县| 浦北县| 定日县| 徐闻县| 石狮市| 乌拉特前旗| 临高县| 工布江达县| 崇文区| 博白县| 平远县| 汝阳县| 阳高县| 北碚区| 漳浦县| 连城县| 东海县| 刚察县| 依安县| 赣榆县| 繁昌县| 郓城县| 綦江县| 扶风县| 峨眉山市| 如皋市| 德安县| 景泰县| 青冈县| 礼泉县| 元谋县| 凤翔县|