| 单词 | spirit levelling |
| 释义 | > as lemmasˈspirit ˌlevelling ˈspirit ˌlevelling n. the use of a spirit level to determine whether something is horizontal or establish a horizontal line. ΘΚΠ society > occupation and work > equipment > equipment for marking out work > [noun] > level > use of spirit levelling1821 1821 J. Farey Let. 9 Mar. in Philos. Mag. 57 235 I sincerely hope..that other gentlemen resident on the different Coasts of our Island will imitate their praiseworthy example; carefully connecting their place of observation, by a Spirit Levelling. 1860 G. B. Airy Let. 3 Dec. in M. Faraday Corr. (2011) VI. 38 A spar on which were marks adjusted by Spirit-levelling. 1911 R. B. Marshall in Bull. U.S. Geol. Surv. No. 463 (heading) Results of spirit leveling in Arizona. 2011 Sunday Times (Ireland ed.) (Nexis) 27 Nov. Tape measures have gone high-tech—a Bosch PMB 300 L digital laser tape measure combines three functions: laser line alignment, spirit levelling and digital measuring. < as lemmas |
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