There is provided a spreading device (100) for trawl fishing and seismic survey operations. The device has an upper frame (111), an intermediate frame (113) and a lower frame (112). There are at leasttwo upper panels (22, 23) between the upper and intermediate frames, and at least two lower panels (22, 23) between the intermediate and lower frames. One of the upper panels and one of the lower panels is adjustable in its angle of attack with respect to other panels. There is provided a manual means for adjusting the angle of attack of the adjustable panels.
一种用于拖网捕鱼和地震勘探作业的撒布装置(100),包括上框架(111)、中间框架(113)以及下框架(112)。还具有位于所述上框架和所述中间框架之间的至少两个上面板(22、23),以及位于所述中间框架和所述下框架之间至少两个下面板(22、23)。其中一个上面板和其中一个下面板相对于其他面板的攻角可调。还提供有用于调节所述可调节面板的攻角的手动装置。
SPREADING DEVICE
撒布装置
2021-03-16
Patent
Elektronische Ressource
Chinesisch