U.S., Germany, Republic of Korea and Taiwan.The enterprise executive standard of cuprous oxide was identified as the standardof the Ministry of Chemical Industry in March 1998.是什么意思_U.S., Germany, Republic of Korea and Taiwan.The enterprise executive standard of cuprous oxide was identified as the standardof the Ministry of Chemical Industry in March 1998.在線翻譯_英語_讀音_用法_例句