| 释义 |
▪ I. plano-1|pleɪnəʊ|
used as combining form of L. plānus flat, smooth, level; in scientific or technical adjectives, denoting (a) flatly, in a flattened manner, with modification of a specified form in the direction of a plane, as plano-compressed, plano-conical, plano-hemispherical, plano-obconical, plano-orbicular, plano-patellate, plano-rotund, plano-subcucullate; (b) a combination of a plane with another surface, esp. plane on one side, and of another surface on the other, as plano-concave, -convex, etc. Also plano-cylindric, -ical, plane on one side and of a cylindrical form on the other; plano-horizontal, having a plane horizontal surface or position; plano-miller, plano(-)milling machine, a milling machine built in the manner of a planer and used esp. for heavy work, having a flat bed to carry the workpiece and a sliding cross-piece that carries rotating cutters as in an ordinary milling machine, rather than a planing tool; † plano-solid Arith. Obs., applied to a number compounded of a ‘plane’ and a ‘solid’ number, i.e. of 5 prime factors; plano-subulate, of a flat awl-shaped form.
1839Lindley Sch. Bot. viii. 183 Seeds *plano-compressed or winged at the apex.
1681Grew Museum i. iv. 75 Some few are *Plano-Conical, whose Superfice is in part level between both ends. 1846Dana Zooph. (1848) 553 Corallum firm; cells..quite shallow, plano-conical.
1727Swift Art Polit. Lying Wks. 1755 III. i. 114 He supposes the soul to be of the nature of a *plano-cylindrical speculum..the plain side was made by God Almighty, but that the devil afterwards wrought the other side into a cylindrical figure.
1846Dana Zooph. (1848) 327 Cespitose, *plano-hemispherical.
1760J. Lee Introd. Bot. ii. xx. (1765) 116 Vexillum, the Standard; a Petal covering the rest..*plano-horizontal.
1906J. G. Horner Mod. Milling Machines v. 130 *Plano-Millers or Slabbing Machines.—This is a name that seems most appropriate to designate that large and growing group of machines which is built on the model of the common planing machine, with bed, table, housings, and cross rail. 1963Gen. Engin. Workshop Practice (ed. 3) vi. 218/2 The plano-miller is a milling machine, but designed to execute certain work formerly confined to the planer.
1905T. R. Shaw Machine Tools vii. 478 Universal *plano-milling machines are now constructed of any size with either one or two saddles carrying spindles on the cross-slide, just as with the tool-boxes of planing machines. 1964S. Crawford Basic Engin. Processes vi. 154 A plano milling machine possesses several advantages as compared with the planing machine, including the reduction of non⁓cutting time, wider range of operations in one setting, and increased rate of production.
1846Dana Zooph. (1848) 453 With a solid *plano-obconical base.
1887W. Phillips Brit. Discomycetes 175 Gregarious, suberumpent, sessile, waxy, *plano-patellate.
1846Dana Zooph. (1848) 347 Subcylindrical,..*plano-rotund at top.
1662Hobbes Seven Prob. Wks. 1845 VII. 67 There be some numbers called plane, other solids, others *plano-solid.
1846Dana Zooph. (1848) 336 Very broad explanate, and often *plano-subcucullate.
1760J. Lee Introd. Bot. ii. xviii. (1765) 110 The Claws *plano-subulate.
▪ II. plano-2|plænəʊ|
before a vowel or h plan-, combining form of Gr. πλάνος wandering, used in a few scientific terms; see planoblast, planodia, planogamete, planuria. |