Junior high school biology grouping experiment box I
Classification:
Junior high school biological experimental box
Product Model:
Grade:
Junior high school biology
Function Description:
The experimental device and experimental operation are simple and convenient. Strong, compact, support stacking, buckle, support multiple boxes at the same time to carry. Contains a foam lining, neat storage, to the equipment adequate protection.
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Name:Junior high school biology grouping experiment box I
Learning section:junior high school biology
Introduction:The experimental device and experimental operation are simple and convenient. Strong, compact, support stacking, buckle, support multiple boxes at the same time to carry. Contains a foam lining, neat storage, to the equipment adequate protection.
Experiment:It can simulate and demonstrate experiments such as special experiments of junior high school biology grouping examination (digestion of saliva, temporary loading of epidermal cells of onion scale leaves).
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The measuring principle of the blood pressure sensor is to adjust the inflation volume of the cuff to the upper arm, change the pressure, and the blood flow through the blood vessels has a certain oscillation wave, which is received by the sensor and converted into electrical signals; According to the change of the oscillating wave, the air pressure and fluctuation detected by the sensor will also change. The time of maximum fluctuation is selected as the reference point. Based on this point, the fluctuation point of a certain value is found forward as systolic pressure, and the fluctuation point of a certain value is found backward as diastolic pressure.
Used to measure the pressure of a gas in an atmospheric environment or in a confined space.
Used in various kinds of titration experiments in chemistry, such as acid-base neutralization titration experiment, and partial ion content determination, such as acid-base neutralization titration, acid-base reaction heat experiment, sodium potassium calcium concentration detection.
7F, No.1 Building, Tianan Cyber Park, No.36 Yongfeng Road, Qinhuai District, Nanjing, China. (R&D centre)
No.306 Wenchang Road, Yongyang Street, Lishui Disctric, Nanjing, China. (Manufacturing base)
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