| 单词 | rock floor |
| 释义 | > as lemmasrock floor rock floor n. (a) a stony lower surface of a room or other structure; (b) a layer of underlying solid rock, bedrock. ΚΠ 1818 Gentleman's Mag. June 499/2 The room appears to be about eight feet high, with a very level rock floor. 1849 Trans. Bombay Geogr. Soc. 1847–9 8 351 In one of the crypts two troughs for corpses were excavated in the rock floor. 1905 Jrnl. Geol. (Chicago) 13 393 The desert plain may be reduced to a lower level than that of the deepest initial basin; and then a rock-floor,..unrelated to normal baselevel, will prevail throughout. 1946 F. E. Zeuner Dating Past vii. 223 Resting on an irregular rock-floor at about 7·5 metres above low sea-level, a beach conglomerate is found. 2008 Associated Press Financial Wire (Nexis) 12 Nov. The scientists will collect weather data and use a series of microphones to map the rock floor. < as lemmas |
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