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升降平台
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升降平台
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lifting table
升降平台
为保证肢体残障或者轮椅使用者在两个或多个平面之间无障碍通行而设置的沿楼梯或竖直方向在同一段路径往返运行的运载装置。
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aircraft wing structure
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aircrew coordination training
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air-cushion craft
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air-damped balance
air data calibration technique
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air defence works design
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air defense identification zone
air-defense missile system
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air defense warning and command system
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