The draw-out-time is one of the most important ballistic parameters of the low-drag parachute bomb.

减速伞拉直时间是描述低空低阻伞弹道特重要要参量。

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The draw-out-time is one of the most important ballistic parameters of the low-drag parachute bomb.

减速伞拉直时间是描述低空低阻伞弹道特重要要参量。

youdao