(n.) An instrument for describing circles, measuring figures,
etc., consisting of two, or (rarely) more, pointed branches, or legs,
usually joined at the top by a rivet on which they move.
编辑:内尔达
双语例句
Compasses are sometimes carried on masts in iron vessels as a means of removing them from the disturbing influence of the iron of the hull. 佚名.神奇的知识之书.
Bradstreet had spread an ordnance map of the county out upon the seat and was busy with his compasses drawing a circle with Eyford for its centre. 阿瑟·柯南·道尔.福尔摩斯历险记.