| 单词 | portal crane |
| 释义 | > as lemmasportal crane portal crane n. Engineering a crane mounted on a portal frame, so as to allow the passage of vehicles underneath. ΘΚΠ society > occupation and work > equipment > lifting or hoisting equipment > [noun] > crane > types of quay crane1821 balance-crane1824 well crane1836 water crane1849 jenny1861 jib-crane1873 stacker1875 Titan1876 transfer-elevatora1884 whip-crane1883 Goliath1888 jigger1891 wharf crane1893 floating crane1903 tower crane1906 hammer-headed crane1908 portal crane1908 hammer-head crane1910 luffing crane1913 cherry-picker1945 stacker crane1959 monotower1963 Transtainer1964 portainer1966 1908 A. Tolhausen tr. A. Böttcher Cranes vi. 245 (heading) Hydraulic portal crane. 1958 Times Rev. Industry Oct. 20/3 No. 21 Quay at Alexandra Dock has been opened this year after being re-equipped with five 6/3 ton electric portal cranes. 1992 Nova Scotia Trav. Guide 115/1 The Scott kraft-paper mill, with the biggest portal crane in North America. < as lemmas |
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