| 摘要 |
Fishing tool consisting of mobile parts, in particular a circular net (15), with a slight parabolic depth, inserted on two semicircular frames (16) with hinges (9) applied respectively on the four extremities and at the centre; the hinges (9) are fitted to control by means of some threads the closing of the two frames (16), whose rotation on its imaginary axis makes a fan-shaped movement. |
