那火箭系由地对水下发射。

The rocket was fired surface-to- underwater.

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本文在大型压力水筒中研究了火箭发动机的水下分离特性。

The research on separation of underwater rocket flow in a large pressurized tank is presented.

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通过测量固体火箭发动机水下工作过程中的推力和侧向力，研究了扰流片和摆喷管两种推力矢量方式的水下推力矢量特性。

By measuring the thrust and lateral forces of solid rocket motor during firing conditions, the thrust vector control performances of jet TAB TVC and movable nozzle TVC were studied.

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