| 单词 | dipper dredge |
| 释义 | > as lemmasdipper dredge c. In full dipper dredge. A type of dredging boat or machine (see quots.). ΚΠ 1877 Encycl. Brit. VII. 465/1 The dipper dredge consists of a barge, with a derrick-crane reaching over the stern, suspending a large wrought-iron bucket which brings up the dredged material. 1879 Scribner's Monthly Nov. 55/1 The channel has also been assisted somewhat in its development, by an Osgood dipper dredge. a1884 E. H. Knight Pract. Dict. Mech. Suppl. 259/2 Dipper, a form of dredging machine which has a large ladle on the end of a spar. 1959 Chambers's Encycl. IV. 634/2 Such a crude form of dipper dredge is still to be found in China. < as lemmas |
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