| 释义 |
ˈdiving-bell
[f. diving vbl. n. + bell n.1 5.]
a. A strong heavy vessel, originally bell-shaped, with the bottom open, in which persons may descend into deep water, respiration being sustained by the compressed air at the top, or by fresh air supplied by a forcing pump from above.
1661Evelyn Diary 19 July, We tried our Diving-Bell, or Engine, in the water-dock at Deptford..it was made of cast lead, let down with a strong cable. 1693Phil. Trans. XVII. 896 Means of weighing up sunken Vessels..and taking out the Goods by means of the Diving Bell. 1713Derham Phys. Theol. iv. iii. note (R.), One of the divers blew an horn in his diving-bell, at the bottom of the sea. 1774Goldsm. Nat. Hist. (1776) I. 241 The great diving-bell improved by Doctor Halley, which was large enough to contain five men. 1874Burnand My Time xxiv. 212 Breathing with as much difficulty..as he might have experienced in a diving-bell.
attrib.1874Knight Dict. Mech. I. 713/2 A diving-bell company was formed in England in 1688. Ibid. 715/1 Diving-bell Pump, a pump having a casing divided by a vertical partition into two chambers, which are provided with inwardly and outwardly opening valves.
b. The air-filled web in which the water-spider lives under water.
1854[see water-spider]. 1961Listener 7 Dec. 986/2 A water-spider beside its ‘diving-bell’, a bubble of air contained in a web. |