| 单词 | lockage operation |
| 释义 | > as lemmaslockage operation General attributive, as lockage operation, lockage time, lockage water. ΚΠ 1767 Scots Mag. May 253/2 An act of parliament for levying 2 d. a-tun per mile of lockage-duty upon all the goods or vessels that shall pass through this canal. 1816 Mechanic 1 319 (title) Method of saving lockage water, in Canals, Docks, and Navigation. 1849 Western Jrnl. 3 255 Lockage time on such an improvement, is not lost time; because landing passengers and freight can always proceed during the same time. 1861 S. Smiles Lives Engineers II. 147 Powerful steam-engines were also erected to pump back the lockage water into the canal above. 1955 Geogr. Rev. 45 116 Lockage operations at Viersel..are calculated (1952) to make available a daily surplus of 80,000,000 gallons. 2005 C. R. Fremling Immortal River xvii. 254 Lockage times are annoyingly long, especially when they involve double lockages of towboats. < as lemmas |
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