有任何疑问或需要帮助，请通过邮件或社交平台联系我们。您的反馈是我们改进的重要动力。 Fast forward — way forward. The primary inkling individuals experienced of your existence of oxygen as a component was in 1608, when Dutch inventor Cornelius Drebbel noted that the heating of saltpeter (potassium nitrate) produced a fuel, in accordance with the Royal Modern society of Chemistry (RSC). T... https://haynesj357phx2.vigilwiki.com/user