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生物地层面
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生物地层面
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生物地层面
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biostratigraphic horizon
生物地层面
上、下生物地层特征有重要而显著变化,或本身具有独特生物地层特征的面或薄层。简称生物面。又称界面、界线、基准面、关键面等。
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flight test emergency process
flight test for adaptibility
flight test for demonstration and verification
flight test for detection and awareness system
flight test for eviromental control system
flight test for initial airworthiness
flight test for military aircraft
flight test for parachute
flight test for personal protective equipment
flight test for stealthiness chracteristics
flight test instrumentation
flight test master plan
flight test of carrier rocket
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flight test site
flight test site for special air vehicle
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