| 摘要 |
PURPOSE: A water measuring device is provided to enable application as a learner material for students because of a small and portable structure and low price. CONSTITUTION: A water measuring device(100) comprises a container(110), current meters(121,122), and a water pollution indicator(140). The container stores water as an object for water quality measurement. The current meters directly contact the water within the container and measure the current varied according to the amount of ion contained in the water. The water pollution indicator indicates the current amount measured by the current meters in the degree of water pollution.
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