| 单词 | tow-net |
| 释义 | tow-net, n.|ˈtəʊnɛt|
[f. tow n.4 or v.1 + net n.1]
A drag-net or dredge used for the collection of natural specimens. Hence tow-ˈnet v., trans. to drag with a tow-net; intr. to use a tow-net; whence ˈtow-netter, ˈtow-netting vbl. n.
1816Tuckey Narr. Exped. R. Zaire i. (1818) 9 The tow-net was put overboard, and collected some of these animals. 1883C. F. Holder in Harper's Mag. Jan 186/2 Dr. Bennet..captured a specimen in a tow-net. 1891Herdman in Nature 23 July 274/1 While townetting during the last few days about the North Cape, we have had some large hauls of Copepoda. 1894Q. Rev. Apr. 367 The direct evidence of tow-netting the upper layers of water with fine silk nets. 1899Geogr. Jrnl. Feb. 153 There are two schools of tow⁓netters: the old-fashioned method..by which the nets are towed horizontally; and the new method, by which an opening and closing net is let down as vertically as may be, and hauled in open through a given vertical area and then closed. 1902R. Valentin in Jrnl. R. Inst. Cornw. XV. 84 No ephyræ were obtained in any of the tow-nettings made in the spring. |
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