| 释义 |
proˈpelling, vbl. n. and ppl. a.
[f. propel v. + -ing1, -ing2.]
a. vbl. n. The action of propel v.; propulsion; also attrib.
b. ppl. a. That propels. Also in Comb., as propelling pencil, a mechanical pencil containing a screw by which the lead may be projected and retracted.
1809Fulton U.S. Patent Specif., I give the preference to a water wheel or wheel with propelling boards. Ibid., The superior advantage of a propelling wheel or wheels. 1827H. Steuart Planter's G. (1828) 436 These propelling vessels were said to be Arteries, and the returning vessels were considered as Veins. Such is the theory of the circulation of the Sap, held forth by the earlier phytologists. 1837Mech. Mag. 3 June 130 Whether it be great speed or great propelling power. 1877W. Thomson Voy. Challenger I. i. 58 The propelling engines are..high-pressure direct-acting vertical engines of six horse-power. 1895Montgomery Ward Catal. 185/1 Men's Propelling and Repelling Pencil..takes full size and length of lead. 1933D. L. Sayers Murder must Advertise x. 169 If Bredon really wanted a propelling pencil he ought to get an Eversharp. 1955S. Beckett Molloy 136 Between my fountain-pen and my propelling-pencil. 1962L. Deighton Ipcress File xi. 71 Murray used a propelling pencil with changeable coloured leads. 1976M. Butterworth Remains to be Seen ii. 15 Silver propelling-pencil poised over the page. |