| 释义 |
▪ I. ˈdredging, vbl. n.
[f. dredge v.1 + -ing1.]
a. The action of the verb dredge1.
1622R. Hawkins Voy. S. Sea 227 In anno 1583..I was at the dregging of pearle oysters after the manner we dregge oysters in England. 1764Platt in Phil. Trans. LIV. 52 To use dragnets as they do in drudging for oisters. 1876Page Adv. Text-Bk. Geol. xx. 414 So far as dredgings and soundings enable us to decide.
b. concr. That which is dredged up.
1881Carpenter Microsc. xii. §474 It is curious that these two forms should present themselves in the same dredging. 1891Law Reports Weekly Notes 120/1 Depositing thereon dredgings from the river.
c. attrib. and Comb., as dredging-bag, dredging-bucket, dredging-engine, dredging-gear, dredging-iron, dredging-machine, etc.
1776G. Semple Building in Water 33 The Stones..tore and totally destroyed our Drudging-bags. Ibid. 29 Drudging-engines. 1830Mech. Mag. XIII. 64 The dredging-machines..were invented and patented by a Mr. Israel Pownall in 1712. 1840Evid. Hull Docks Com. 37 Excavation..done by the dredging-machine. 1851Offic. Catal. Gt. Exhib. II. 600 Improved grappling or dredging-iron, for drawing from the water the bodies of persons..drowned. 1872Porcupine 29 June 198/3 Set the dredging-buckets to work, and scooped it all away.
▪ II. dredging, -box
see dredge v.2 |