The hydrazinecarbothioamide was prepared from hydrocyanic acid, hydrazine hydrate, and sulphur. The total yield is over 80%.是什么意思_The hydrazinecarbothioamide was prepared from hydrocyanic acid, hydrazine hydrate, and sulphur. The total yield is over 80%.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句