The crucian carp fishing service water it is deep the measurement float

摘要

Topic It can measure the accurate depth of water.SolutionsThe balsa material was processed to circle, through the urethane tube passed to the center, the crucian carp fishing service water deeply it is the measurement float. The top of the spatula float attaching the clay weight for inserting and the depth of water measurement to both Bali in the urethane tube, it shakes and is packed. From the boundary tension, really the spatula float of the expectation which sinks stands still temporarily in the water surface by applying the wax to the balsa part. After that, pulling the pole rear end, when it opens boundary tension, from the float to the clay weight for the depth of water measurement can measure the depth of water when the true tsu immediately it becomes. Choice figure Drawing 1