What is the meaning of trawl in telugu?

Meaning(s):

1. a long fishing line with many shorter lines and hooks attached to it (usually suspended between buoys)
2. a conical fishnet dragged through the water at great depths
3. fish with trawlers
4. खेंचू जाल = fish net A large net with wide opening,dragged along the bottom of the sea by a boat
5. महाजाल = net A long line used when fishing at sea,to which many short lines with hooks are attached.
6. छानबीन = searching A trawl through new publications.
7. खेंचू जाल से मछली मारना = catch Trawling for mackerel.
8. छानबीन करना = search The police are trawling their files for similar cases.