| 释义 |
oxygen content短语⁹⁰⁸⁸⁷⁺⁷
基本例句
含氧量
运动
It is true that human activity is causing a steady, measurable decline in the oxygen content of the world's air, although as yet this decline is negligible.
的确，人类的活动导致全球空气中的含氧量在以稳定的，可以测量到的幅度下降。尽管如此，但这种下降是微乎其微的。 yeeyan
Plants cull carbon dioxide and increase the oxygen content in air, and some species can filter other harmful gases, such as formaldehyde, as well.
农场中的植物能够吸收二氧化碳，增加空气中的含氧量，而农场中的其他物种则可以过滤空气中的其他有害气体，比如甲醛。 yeeyan |