An instrument for collecting and bringing up objects from the bed of a river, the sea, etc., by dragging along the bottom; usually consisting of an…
| 单词 | θ213300 |
| 释义 | society > occupation and work > equipment > earth-moving and excavating equipment > [noun] > dredging equipment (14) dredge1471 An instrument for collecting and bringing up objects from the bed of a river, the sea, etc., by dragging along the bottom; usually consisting of an… clam-shell1508 the shell of a clam; formerly (Scottish) the scallop-shell worn in their hats by pilgrims who had crossed the seas; also in further extended uses and… drag1611 Something used to drag or pull a weight or obstruction. An apparatus for cleaning out and deepening the beds of rivers, etc.; a dredging apparatus… steam dredge1801 In the names of implements, machines, processes, etc. operated by steam or by a steam-engine, as steam-crane, steam dredge, steam dredger, steam drill… dredging-machine1830 attributive and in other combinations, as dredging-bag, dredging-bucket, dredging-engine, dredging-gear, dredging-iron, dredging-machine, dredging-st… hedgehog1838 Applied to other things likened to a hedgehog. A kind of dredging-machine. bag and spoon1840 bag and spoon: used attributively to designate a type of dredging apparatus (see quot. 1940). hydrophore1842 An instrument for procuring specimens of water from any desired depth, in a river, lake, or ocean. dredger1863 A dredging machine: see quot. 1892. gold dredge1881 a mechanical dredging device, typically mounted on a boat or barge, by means of which gold is dug up from river beds, etc. gold dredger1897 = gold dredge n. suction dredge1901 a type of dredge employing a suction pump, used in the dredging of soft material from sea-beds and river bottoms. bucket dredge1907 = bucket-dredger n. cutter-dredge1913 = cutter-dredger n. |
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