| 释义 |
ˈsight-hole
[sight n.1]
A hole to see through, esp. in a surveying or other instrument.
1559W. Cuningham Cosmogr. Glasse 29 Then rayse up and downe the ruler (having two sight holes made in it) unto the sonne. 1596Shakes. 1 Hen. IV, iv. i. 71 Wee of the offring side Must..stop all sight-holes. 1646Earl of Monmouth tr. Biondi's Civil Wars vi. 72 Slain by the splinter of a Lance which wounded him thorow the sight-hole of his Helmet. 1692Capt. Smith's Seaman's Gram. ii. xxiv. 130 Which will shew at what height the Sight-hole standeth. 1769Phil. Trans. LIX. 296 A small sight-hole, made through a piece of brass. 1823J. Badcock Dom. Amusem. 50 The sight-hole..is still unfurnished with a glass of any sort. 1898Engineering Mag. XVI. 110/2 The sight-holes provided in the smoke-boxes of certain stationary boilers of the locomotive type.
†b. The pupil of the eye. Obs.
1670Phil. Trans. V. 1027 They contract much their pupilla or sight-hole of the Eye. |