| 单词 | water tube |
| 释义 | > as lemmaswater tube water tube n. (a) a pipe that contains or conveys water, esp. any of those carrying water through a water-tube boiler; (b) Zoology (in invertebrates) a tubular structure that conveys water, such as a water vessel in an echinoderm or a vertical channel in the gill filament of a bivalve mollusc. ΘΚΠ the world > animals > invertebrates > bodies or parts > [noun] > excretory organ or system water tube1720 nephridium1877 society > occupation and work > equipment > machine > machines which impart power > boiler > [noun] > parts of > tubes or pipes water tube1720 tube1833 water head1856 worm1857 cross-tubea1884 furnace-tube1888 feed collector1902 1720 J. T. Desaguliers tr. W. J. 's Gravesande Math. Elements Nat. Philos. I. ii. i. i. 144 Excepting the Hole to which the Tube is fix'd, and whose Height is the Height of the Water Tube [L. tubo] above the inward Surface of the Cover. 1834 R. E. Grant in Lancet 17 May 264/2 The ambulacra have numerous perforations for feet..for the passage of water-tubes to distend and project the tubular feet of the echinus. a1877 E. H. Knight Pract. Dict. Mech. III. 2646/2 When the fire passes through the tubes, they are properly flues. The term is, however, applied to pipes, whether water-tubes or fire-tubes, below a certain diameter. 1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) xiii. 207 Among the gill-filaments are numerous minute openings or ostia, which lead from the pallial chamber into the vertical water tubes of the gill plates. 2004 Air Conditioning, Heating & Refrigeration News 13 Sept. 10/2 Floating headers make the boilers' small size and water capacity possible, without creating thermal shock to the boilers' water tubes and enclosure. < as lemmas |
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