![](http://www.alamy.com/thumbs/6/45F6DAF9-1990-4BFE-A78D-7CBF93C749E7/2J1PBTR.jpg)
Hand in laboratory Air displacement micro pipettes filling a colorless reaction tube.
Size: 4000px × 6000px
Location: Germany
Photo credit: © Omar Halawi / Alamy / Afripics
License: Royalty Free
Model Released: Yes
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