| 摘要 |
<p>PURPOSE:To enable purifying operation over a wide water area by a j movable device/and reduce necessary energy in a device to purify the water area by supplying microscopic bubbles underwater. CONSTITUTION:In an underwater sailing object 7 to receive supply of motive power or compressed air from the land or a base ship 1, microscopic bubbles 11 to purify a water area are created by an air nozzle which is arranged in a propeller blade of the propeller 10 and has a large number of microscopic holes, and the microscopic bubbles are efficiently sprayed by centrifugal force caused by rotation of the propeller 10.</p> |
