单词 | quadrant compass |
释义 | > as lemmasquadrant compass quadrant compass n. a compass having one leg fitted with an arc along which the other leg slides and to which it may be screwed. ΚΠ 1875 E. H. Knight Amer. Mech. Dict. III. 1841/2 Quadrant-compass, a carpenter's compass, with an arc and a binding-screw. 1946 J. D. Forrester Princ. Field & Mining Geol. ii. vi. 217 For the ordinary quadrant compass, the quadrants are laid out with reference to true cardinal points of the Azimuth compass. 2000 Re: OT: Physics Question in alt.2600 (Usenet newsgroup) 18 Sept. Back in those days the primary instruments [in surveying] were the transit (or even the quadrant compass) and steel/nickel alloy tape. < as lemmas |
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