单词	bucket truck
释义	bucket truck noun US : a truck equipped with an extendable, hydraulic boom carrying a large bucket for raising workers to elevated, inaccessible areas … to talk about the possibility of sharing the purchase of specialized highway equipment, like … bucket trucks for roadside tree trimming. David Detmold, Montague (Massachusetts) Reporter, 8 Oct. 2009 Word History First Known Use 1960, in the meaning defined above
随便看	radio balloon radio beacon radio beam radio bearing radio car radio collar radio compass radio control radio direction finder radio electrician radio engineering radio field intensity radio field strength radio fix radio frequency radio galaxy radio link radio marker radio meteor radio navigation radio observatory radio proximity fuse radio range radio range beacon radio range station

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