The production situation of thiourea in China is introduced.Most factories produce thiourea with hydrogen sulfide and calcium cyanamide and the total domestic output was 60 thousand tons in 2003.是什么意思_The production situation of thiourea in China is introduced.Most factories produce thiourea with hydrogen sulfide and calcium cyanamide and the total domestic output was 60 thousand tons in 2003.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句