| 单词 | rubble drain |
| 释义 | > as lemmasrubble drain rubble drain n. a drain filled with loose broken stones; cf. rumble drain, French drain n. ΚΠ 1810 W. Nicol Gardener's Kalendar 152 It may be a rubble drain, or a box-drain, according to necessity. 1876 Manch. Guardian 5 Aug. 8/5 Surface drains, mostly rubble drains, serve to carry off slop and storm water to the nearest watercourse. 1952 E. L. Leeming Road Engin. (ed. 3) vii. 79 Where banks are liable to wash away, rubble drains (such as may be observed in railway cuttings) are useful for guiding storm-water to the base without erosion. 1995 N. Hudson Soil Conservation (ed. 3) xiii. 325 Drainage of the sloping face of the embankment is usually carried out by rubble drains, that is drains excavated to a rectangular section of about 300 to 500 mm2 and backfilled with rocks. < as lemmas |
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