单词	service ceiling
释义	service ceiling noun : the altitude at which under standard air conditions a particular aircraft can no longer rise at a rate greater than a small designated rate (such as 100 feet per minute) Example Sentences Recent Examples on the Web The plane will have a top speed of around 237 miles per hour at 8,000 feet, a cruising radius of 2,200 miles, and a service ceiling of around 23,000 feet. Popular Mechanics Editors, Popular Mechanics, 3 June 2021 Accommodating a pilot and four passengers, the LAR-01 has a 4,078-pound maximum takeoff weight, with a service ceiling of 46,000 feet. Michael Verdon, Robb Report, 18 May 2021 While America’s Sabres were often seen as a match for the MiG-15, the MiG’s service ceiling of nearly 51,000 feet bested the American fighter’s by almost 2,000 feet. Alex Hollings, Popular Mechanics, 21 Mar. 2021 Their service ceiling was 60,000 feet, stopping them from reaching the slow-moving unarmed reconnaissance plane. Alex Hollings, Popular Mechanics, 4 Sep. 2019 Word History First Known Use 1920, in the meaning defined above
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