氨的生产是空气中氮和氢气合成，而氢从油气中提取是最佳途径。

来源: tzbcwbc 于 2015-07-22 09:21:21 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.