| 摘要 |
The first hinge pin (61a) is located on a first side end of the airflow control blade (60a), is of a certain length, and extends outwards from the vertical element (65). The other hinge pins (62a,63a,64a) extend outwards from their elements, in a direction opposite to the first pin. These pins increase in length continuously, towards the second end of the control blade (60a,b). When the blade is fitted into the housing (70), the longest pin (64a) is first inserted into the corresponding hinge bore (84a), and the remaining pins are subsequently inserted, in descending order of length.
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