The best answer
1. Before measuring, observe the thermometer to be used, and understand its range (range of measurement) and the value of the fraction (the temperature corresponding to each small lattice).
2. When measuring, the glass bubble of the thermometer is in full contact with the measured liquid (to be immersed in the measured liquid).
3. After the number is stable, the readings are readable.
4, when reading, the thermometer glass bubble should remain in the measured liquid and can not be taken out.
Add: Liuxia Town, Xihu District, Hangzhou, Zhejiang province China