... 格子体 checker 换向器 reversal device 烟道闸板 flue damper ...
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phase reversal device 反相装置
thrust reversal device 反推力装置
thrust-reversal device 推力反向器
direction reversal device 非操纵逆转保护装置
Unintentional Reversal Safety Device 非操作逆转装置
·2,447,543篇论文数据，部分数据来源于NoteExpress
Screenwriters often employ a plot device called a reversal, in which a hero who seems to be making progress abruptly finds himself worse off, and facing a much greater menace.
编剧们都喜欢设计情节反转的桥段，英雄看起来正在取得一些进展，突然发现自己陷入更大的困境中。
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