| 摘要 |
The purpose of the present invention is to provide a river pollution level measuring apparatus. The present invention relates to environmental engineering in detailed fields of a scientific technique. A purifier, a buoyancy tool, etc. were invented before the present invention. To accomplish the purpose of the present invention, verification is performed in aspects of convenience, practicality, and persistency, and the river pollution level measuring apparatus based on expanded polystyrene is floated by demonstration. Unlike an existing invention, the river pollution level measuring apparatus are combined with expanded polystyrene so that a user can easily use the river pollution level measuring apparatus in accordance with modern society. |
