| 单词 | y level |
| 释义 | > as lemmasY level Y level n. the common spirit-level, used with a telescope or theodolite resting on Y's (also written wye-level). ΘΠ society > occupation and work > equipment > equipment for marking out work > [noun] > level level1340 water level1563 leveller1693 spirit level1718 pendulum level1728 bubble level1814 Y level1845 striding level1878 1845 P. Barlow in Encycl. Metrop. XXV. 304/2 There are two constructions [of levels] that are commonly adopted, viz. the Y level and Troughton's level. < as lemmas |
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