| 释义 |
planeness|ˈpleɪnnɪs|
[f. plane a. + -ness.]
The quality or condition of being plane; flatness, levelness.
1656tr. Hobbes' Elem. Philos. (1839) 202 Every strait line is like every other strait line, and every plane like every other plane, when nothing but planeness is considered. 1896Jrnl. Geol. IV. 955 Overwash plains may sometimes depart from planeness by taking on some measure of undulation. 1906Chamberlin & Salisbury Geol. III. xix. 345 Neither planeness nor unevenness can be ascribed exclusively to the stratified nor to the unstratified drift. 1942F. Twyman Prism & Lens Making ix. 124 The departures from planeness of the wave front..will give rise to a contour map of the corrections which have to be applied to the lens. 1975D. G. Fink Electronics Engineers' Handbk. ix. 26 Since the periphery of the grid is colder than the center, thermal stresses tend to cause buckling or departure from planeness. |