How to read the indoor thermometer?

Look at the triangle between the scale and the number. The triangle magnifies. Hold the upper end of the thermometer with two fingers and shake it gently, and you can see a metal wire. Before use, throw the mercury column of the thermometer below 35℃, put the mercury end of the thermometer under the armpit and deep under the armpit, and hold the thermometer with the upper arm to avoid dislocation or falling. After measuring for five to ten minutes, take out the thermometer, which has thermal inertia and should be read after the thermometer reaches a stable state.