Of key parameters standard design . it predigests the design and improves the design veracity 既简化了设计计算，又提高了设计的准确性。
2.
This is very important for the realistic of the " nose - to - nose " technology ， and it is helpful in establishing national impulse parameter standard 本研究对“ ntn ”技术的实现，以及用“ ntn ”技术建立国家脉冲参数基准有重要参考价值。
