(57) A micro device (10) includes: a supply channel portion (12); a confluent part (14)
into which multiple kinds of liquids (L1, L2) flow from the supply channel portion
to join flows of the liquids from the supply channel portion; and a discharge channel
portion (16) through which a confluent liquid obtained by joining the flows of liquids
is discharged, wherein the supply channel portion includes one or more channel units
(18) arranged around the confluent part, each of the channel units including three
supply channels (18A, 18B, 18C) for joining the multiple kinds of liquids so as to
sandwich one flow of liquid (L1) between two flows of liquid (L2), and a flow-in direction
of the liquids flowing from each of the channel units into the confluent part is offset
from the center (14C) of the confluent part.
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