| 单词 | training wall |
| 释义 | > as lemmastraining wall training wall n. a wall built to direct a current into a particular channel in a river, harbour, etc.; cf. training bank n., training post n.1 2. ΘΚΠ the world > the earth > water > rivers and streams > action of river > [noun] > structures to divert river current scour17.. wing-dam1809 spur1818 training wall1852 training bank1855 training post1884 the world > the earth > land > land mass > shore or bank > bank > [noun] > of river > bank to deflect current training wall1852 training bank1855 1852 Mechanics' Mag. 20 Nov. 413/2 The treatment of the Dee by groynes, and the Clyde, by training-walls, was examined. 1883 Specif. Alnwick & Cornhill Railway 43 The training-walls are to be built of concrete, made of six parts of gravel to one of Portland cement. 1922 Engin. & Contracting 31 May 518/1 Construct training walls or groynes on each side of the drainage outlet to guide the water direct to sea. 1989 J. McPhee Control of Nature (1991) 135 The toppled training wall monoliths worsened the situation. The integrity of the structure at this point was greatly in doubt. < as lemmas |
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