释义 |
spiˈrality [f. spiral a.1 + -ity.] Spiral character; the degree of a spiral curve.
a1858in Greener Gunnery 407 The tendency of a bullet to twist the rifle on one side is now avoided by reducing the spirality of the grooves. 1884Science III. 583/2 The better the [cotton] fibre, the more perfect its spirality. |