| 摘要 |
A fluid dispenser device includes a tubular mount adapted to be fitted onto a top open end of a container, a volume variable member received in the mount and defining a passage therein, and a tubular plunger fluidly communicated with an outlet end of the passage and movable along the inner surface of the tubular mount so as to bring the outlet end to move toward a collapsed position to thereby squeeze fluid in the container out of the passage. Since the fluid is suctioned into the passage without contact with the inner surface of the tubular mount, the smooth movement of the plunger is ensured.
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