oxygen level

• 氧含量

oxygen level的用法和样例：

例句

1. The increase of dissolved oxygen will increase the corrosivity.
   溶解氧含量的增加会显著加剧油田采出水的腐蚀性。
2. The Earth's atmosphere seeks a steady oxygen level much as a thermostat hones in on a steady temperature.
   地球大气寻求固定在某一氧含量水平，就像恒温器总是寻求固定回某一温度。