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供氧面罩
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供氧面罩
Encyclopedia
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oxygen mask
供氧面罩
飞机防护救生系统中,将供氧系统输来的呼吸气体导入人体呼吸器官,并将呼吸器官和周围大气隔开以保持应有的含氧浓度,以及在一定高度以上保持应有呼吸压力的口鼻呼吸器。
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Indexing to Chinese Books
indexing with subject headings
indexization
index law
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index of a correspondence
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index of a divisor
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index of a Fredholm operator
index of a function
index of a geodesic
index of a manifold
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