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| tim99 發表於 2017-1-21 03:24 AM
恭喜CWZ中大獎,真是可喜可賀。
實用升限 (service ceiling)
Service ceiling is where the rate of climb drops below a prescribed value.
The service ceiling is the maximum usable altitude of an aircraft.
絕對升限 (absolute ceiling)
Absolute ceiling is the height at which rate of climb drops to zero.
The absolute ceiling is the highest altitude at which an aircraft can sustain level flight.
資料來源:英文版維基... |
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