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单词 trawling
释义

trawling


trawl

T0331400 (trôl)n.1. A trawl net.2. See setline.3. a. An act of trawling, as for fish.b. An act of searching for or examining something: A trawl of local records produced some leads.v. trawled, trawl·ing, trawls v.tr.1. To catch (fish) with a trawl.2. To fish (an area) with a trawl.3. a. To search (an area) or go to (different places) in search of something: trawled the shops for a bargain.b. To make an examination of something: trawled the archives for a manuscript.v.intr.1. To fish with a trawl.2. To troll.3. a. To search for or try to acquire something: a contractor trawling for day laborers.b. To make an examination of something: trawling through a writer's papers.
[Possibly Middle English trawelle, perhaps from Middle Dutch tragel, dragnet, possibly from Latin trāgula, from trahere, to drag. V. tr., sense 3a, and v. intr., sense 2, influenced by troll.]

trawling

(ˈtrɔːlɪŋ) n (Fishing) fishing using a trawl net or trawl line
Translations

Trawling


Trawling

 

a method of catching fish using a sacklike fishnet called a trawl, which is towed through the water by a special ship called a trawler.

Trawling developed intensively in the second half of the 19th century, with the advent of steamships and their use in fishing. It is the leading method of commercial fishing (1976). In the USSR, trawling accounts for more than 70 percent of the catch. Trawling is done mainly at depths to 800 m using benthic and floating trawls towed by the same ship. Twin trawls—those towed by two ships—are used in some types of trawling.

The development of trawling is aimed mainly at an increase in the dimensions of trawls through the use of large-mesh nets and gear with excellent hydrodynamic characteristics, the design of general-purpose variable-depth trawls, and the introduction of electrified and lighted trawls and trawls for heavy bottoms and for catching fish at great depths (down to 2,000–2,500 m).

G. K. VOITOLOVSKII

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更新时间:2025/3/16 20:04:09