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| oxygen content (в отработавших газах) | |||
| oxygen content (Amount of oxygen contained in a solution; Количество кислорода, содержащееся в растворе) | |||
| O2CT (Лорина) | |||
| oxygen content (of soil air); O₂ content (of soil air); oxygen percentage (of soil air) | |||
| oxygen content | |||
| oxygen concentration; oxygen content; oxygen level; oxygen reading | |||
| содержание кислорода: 109 phrases in 35 subjects |