True enough, Yang was sitting signing books bought by tourists with one hand, while the other held a fan that shielded his face from photographers.

的确，杨先生一只手为买书的人签字，另一只手拿着一把扇子挡住脸，以防有人拍照。

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The fin-like appendage on the helmet houses a forced ventilation fan, which blows fresh air over the technician's face to relieve perspiration.

头盔装具上的鳍状物附属物为强制通风片，能够向拆弹专家的面部输送新鲜空气以便排除汗水。

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He is fanning his face with a small fan.

他用一把小扇子往自己脸上扇风。

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