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TIME KEEPING DEVICE HAVING PARTICULATE MATTER MIXED IN FLUID MEDIUM SUITABLE FOR CHILD DISCIPLINE
TIME KEEPING DEVICE HAVING PARTICULATE MATTER MIXED IN FLUID MEDIUM SUITABLE FOR CHILD DISCIPLINE
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机译:具有适合于儿童学科的流体介质中混合了特定物质的时间保持装置
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摘要
A time keeping device suitable for use as a time-out timer includes opposing flat ends on either of which the device can be stood, and includes a body having a wall or walls that are transparent or have a transparent portion to allow viewing the interior of the body. A mixture of a fluid medium and a mass of a particulate matter are disposed inside the body, viewable through the transparent wall. The fluid medium and the amount of the particulate matter are selected so that, after being agitated to distribute the particles of the particulate matter throughout the fluid medium, the particles accumulate by settling while the device is at rest to a certain level in a preselected period of time.
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