The complexity of a towed air-launch system model mostly depends on the complexity of the towline model in this system.

拖曳式空中发射系统模型的复杂程度很大程度上取决于拖缆模型描述的复杂程度。

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The complexity of the model of a towed air-launch system mostly depends on the complexity of the model of the towline in this system.

拖曳式空中发射系统模型的复杂程度很大程度上取决于拖缆模型描述的复杂程度。

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It later emerged that the spacecraft’s heat shield had been damaged on launch, letting superheated air inside and tearing it apart.

后来证实，航天飞机的外层热防护在发射时就被损坏，使得超热气体渗入机舱内，导致机毁人亡。

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According to Allen and his partners, this air-launch-to-orbit system is far less expensive and far more flexible than traditional ground launches, which are still used by some private companies for satellite launches.

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