单词 | lifting device |
例句 | This machine consists of a base or anvil, a hammer which moves up and down between two uprights, and a lifting device, which is secured to the top of the uprights. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Its smooth gray-gleaming surface was devoid of wings or other lifting devices. Slaves of Mercury The boxes soon become more or less distorted, and then even the best of lifting devices will not remove a hot pot without several minutes labor in front of the doors. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel This latter term is properly used only in referring to heavier-than-air machines which have no gas-bag lifting devices, and are made to really fly by the application of engine propulsion. Flying Machines: construction and operation; a practical book which shows, in illustrations, working plans and text, how to build and navigate the modern airship |
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