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旅游安全
释义
旅游安全
Encyclopedia
理学
旅游安全
释
tourism safety and security
旅游安全
旅游系统(包括特定的社会行为主体或特定的旅游事物)可以容忍的风险程度。
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concave surface
concave-up
concave-up curve
concave upward
concavity
concavity coefficient
concavity cut
concavity cutting-plane method
concavity downward
concavo-concave
concavo-convex
concavo-convex lens
concavo-plane
conceal
concealed beam
concealed motion
concealing a candidate's name
concealment method
Concentraion on Doubtful Matters While Persuing the Laws
concentrate
concentrated
concentrated area with special difficulties
concentrated bait
concentrated charging
concentrated constant circuit
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