Answers

2016-04-15T22:33:00+05:30
By applying force on the bottom of the piston towards the syringe.
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i want some explanation about it
actually can frame the question in a better way...i'll surely help u
kk
did u see my nxt question
plz help me
2016-04-16T16:42:21+05:30
 A piston can be easily pushed when there is no content in it.

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