| 释义 |
lockage|ˈlɒkɪdʒ|
[f. lock n. and v. + -age.]
†1. The means of locking or fitting (pieces of timber) together. Obs.
1677Plot Oxfordsh. 272 Whose Lockages [sc. of the roof of the Sheldonian Theatre] being so quite different from any before mentioned.
2. (See lock n.2 9, 9 c.)
a. The amount of rise or fall effected by a lock or series of locks.
1770J. Brindley Surv. Thames 2 The Length will be about a Mile, and the Fall or Lockage ten Feet. 1795J. Phillips Hist. Inland Navig. Addenda 5 The total lockage is five hundred and forty-four feet, viz. four hundred and ninety-six feet fall, and forty-eight feet rise. 1829J. Macauley Hist. New York I. 184 The ascending and descending lockage is about one thousand and thirty-two feet. 1879Daily News 28 Aug. 3/2 From Chicago to Montreal..there are..56 locks, and a total lockage of 564 feet.
b. Toll paid for going through a lock or locks.
1771Act 11 Geo. III, c. 45 §9 Which price or lockage shall be..painted..on Boards, on the said Locks. 1800Colquhoun Comm. Thames xv. 483 The price of lockage is not to exceed 4d per ton per lock. 1819Stat. Massach. 19 June, Toll or lockage at the lock or locks. 1856Farmer's Mag. Nov. 424 The expense of lockage, transhipment, &c.
c. The construction and working of locks; also, the aggregate of locks constructed.
1809Chron. in Ann. Reg. 403/1 Nearly 200 feet of lockage. 1824R. Stevenson in Trans. Highland Soc. VI. 133 The great desideratum in the Railway-system, must doubtless lie in a convenient mode of lockage, for raising the waggons from one level to another. 1830Blackw. Mag. XXVII. 459 To convert the..river by lockage into a channel capable of receiving..vessels. 1839Southey in Q. Rev. LXIII. 426 This line was..impeded..by an enormous quantity of lockage. 1853–4Proc. Inst. Civ. Engin. (1854) XIII. 218 It was the same thing hydrostatically,..whether the lockage was up or down, or indeed, whether there was any vessel at all in the lock. 1861Smiles Engineers I. iv. 452 Brindley's plan was..to cut the level as flat as possible, in order to avoid lockage. 1883Manch. Exam. 19 Dec. 4/5 The..drainage area of the coal-bearing rocks along the route of the proposed Canal would give a sufficient amount of water for lockage.
d. attrib., as lockage-system, lockage-water.
1816Mechanic I. 319 (title) Method of saving lockage water, in Canals, Docks, and Navigation. 1861Smiles Engineers II. 147 Powerful steam-engines were also erected to pump back the lockage water into the canal above. 1895Forum (N.Y.) Aug. 750 The lockage system of the Welland [canal] is out of date.
e. The passage (of a vessel) through a lock.
1913J. B. Bishop Panama Gateway v. iv. 375 The average number of lockages through the..Canal..was 39 per day. |