This is the 6569th most frequent Korean word.
온도를
"온도를" means "temperature" (accusative case).
Here, '온도를' is the object of the verb '측정하다,' meaning 'to measure.'
온도를 정확히 측정해주세요.
Please measure the temperature accurately.
Here, '온도를' is used as the object of the verb '높이다,' meaning 'to increase.'
온도를 높이면 물이 끓습니다.
If you increase the temperature, the water boils.
In this sentence, '온도를' serves as the object of the verb '조절하다,' which means 'to adjust.'