17 Sep 2022 08:19
What is the principle of operation of needles and syringes?
A syringe is a type of pump consisting of a sliding plunger that is tightly inserted into the tube. You can pull the plunger into the tube's cylindrical shape or barrel to draw in liquids , or let it expel them through the opening at the other end. https://medbasic.co.uk/
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