The maximum and minimum thermometer in the botanical garden in Shanghai

The rhythm of the holiday is to go out to play, in order to stay away from the noise of the city, Shanghai botanical garden may be a good choice. Although winter continues, but the intensity of the cold air is waning, the temperature is rising. Shanghai botanical garden in early spring flowers open in succession, butterfly orchid and fleshy plants in the greenhouse, will build a garden warm spring in the air. Let's try to find out! （ Above) This is a composed of more than 500 white butterfly orchid flower falls, very spectacular. Plants, etc. , we are more than meat hall saw a familiar figure, maximum and minimum thermometer ( The figure below) ！ It hovered between numerous witchford and anthurium. Within the maximum and minimum thermometer is often used in greenhouses, greenhouse like botanical gardens, for instance, it can record in a certain period of time the maximum temperature and minimum temperature in air, can measure the temperature range is - 40℃~50℃。 By the ABS plastic shell and mercury glass tubes, glass on the left column for the lowest temperature, as the highest temperature on the right. Glass column in blue cylinder for directional signs, see blue indicator when reading the bottom. Thermometer and peg hole, the top has a roof to shelter from the rain and hanging in greenhouses.