单词:argentum chloratum
单词:argentum chloratum 相关文章
红斑鳞屑性皮肤病 多形红斑 erythema multiforme 离心性环状红斑 erythema annulare centrifugum 慢性游走性红斑 erythema chronicum migrans 匍形性回状红斑 erythema gyratum re
Because chemists for so long worked in isolation, conventions were slow to emerge. Until well into the second half of the century, the formula H2O2 might mean water to one chemist but hydrogen peroxide to another. C2H4 could signify ethylene or marsh
BEIJING, Aug. 8 (Xinhua) -- China on Wednesday started to review anti-dumping measures it imposed on chloroprene rubber imported from a Japanese company, the Ministry of Commerce said. The move came after the ministry received complaints that Japan E
Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele