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The filter adopts high - strength wedge-shaped strainer to control the automatic cleaning of filter element through pressure differential control. When the impurity accumulates in the filter surface causes the import and export pressure difference to increase to the set value, or the timer reaches the preset time, the electric control box sends out the signal to drive the anti-flushing mechanism. When backwash suction dish and filter imports are pair, the drain valve is opened, the system pressure drainage, chuck and filter the inside a relative pressure below the filter of the lateral pressure of negative pressure zone, forcing some net circulating water from the inside filter lateral flow filter, adsorption on the inner wall of the filter in the impurity particles with flow into ç©£ disc and is discharged from the drain valve. The specially designed filter causes the inside of the filter to produce a jet effect, and any impurities will be washed away from the smooth inner wall. When the pressure difference of the filter is returned to normal or the timer set time is finished, the material does not break the flow during the whole process, and the anti-washing water consumption is low, which realizes the continuous and automatic production
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Most babies do not have adverse reactions after vaccination. Some baby vaccinated will fever, headache, loss of appetite, needle eye redness and swelling, pain or inflammation such as scleroma, this is the general response to vaccines, this kind of reaction generally do not need special treatment, 2 ~ 3 days to recover on its own. Due to individual differences, such as allergic constitution, some vaccines may occur in cases such as rash, anaphylactic shock and other allergic reactions. This is an abnormal reaction and needs to be treated in the hospital. Also some babies vaccination is a disease of disease, or there has not yet found the basis of the incubation period after vaccination coincidence, known as coupling, coupling and vaccine itself has nothing to do.
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