| 单词 | bubble trier |
| 释义 | > as lemmasbubble trier bubble trier n. now rare an instrument used for testing the accuracy of a spirit level, consisting of a stand equipped with an adjustable mount which is used to incline the level at different angles. ΘΚΠ society > occupation and work > equipment > equipment for marking out work > [noun] > level > instrument for testing bubble trier1799 1799 Jrnl. Nat. Philos., Chem., & Arts Dec. 397 The bubble moves most regularly, by equal inclinations of the instrument upon a stage, called the bubble trier. 1890 W. F. Stanley Surveying Instruments 88 The Bubble Trier is a bar or bed 12 to 20 inches long, with two extended feet ending in points at one end, and a micrometer screw, the point of which forms a resting foot, at the other end, thereby forming a tripod. 1987 R. C. Brinker & R. Minnick Surv. Handbk. vi. 187 The laboratory procedure is to set the bubble into a level bubble trier. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。