| 摘要 |
The present invention relates to a mixture preparation device for mixing two fluids comprising a first container for primary fluid and a secondary container for secondary fluid. These containers have a configuration wherein volume to height ratio of fluid in each container remains identical, and they are adapted to be placed side by side on a common surface. The desired ratio is obtained when the primary fluid of the first container is filled up to the same level as the secondary fluid in the second container. The second container is a variable capacity container, comprising a capacity changing means that allows selection of a desired ratio. The capacity changing means is a vertically oriented movable partition adapted to be moved inside the container. This movable partition divides the second chamber in an airtight manner.
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