打开玻璃至通风口位置。
The opening process of the circle flat parachute with the differential size and the differential vent position of the canopy by the steady flow wind tunnel were dynamic tested.
在改变伞衣面积和透气量的情况下，在定常风洞中对小型平面圆形伞的开伞过程进行了动态试验，研究了开伞过程中伞衣形状和伞衣所受载荷之间的动态关系。
Visually inspect vent to ensure that vent goes to full open position when the pressure is at zero.
目测检查排气口以确保当压力为零时，排气处于全开位置。
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