High Altitude Critical Care 高原危重病
critical escape altitude 临界离机高度
critical parachute open altitude 临界开伞高度
critical parachute-openting altitude 临界开伞高度
Check your minimum and critical altitude.
检查你的最低标准和警告高度。
The result indicates that the critical wind speed of vehicle turnover increases with the elevation of the altitude and decreases with the appearance of roadbed disease at frozen soil area.
研究结果表明：青藏高寒铁路临界翻车风速随海拔升高而增大，而随冻土路基病害出现而降低的规律。
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