defence n. 1.防御,防备。 2.保卫,保护;辩护。 3.防卫物;〔pl.〕 【军事】防御工事,堡垒。 4.护身术。 5.【法律】(被告的)抗辩,答辩;被告一方(包括被告及其辩护律师)。 6.【体育】守方。 legal defence 正当防卫。 line of defence 【军事】防线。 national defence 国防。 The best defence is offence. 最好的防御是进攻,先下手为强。 counsel for the defence (刑事被告的)辩护人。 a defence against an attack 防御(敌人的)进攻。 defence in depth 纵深防御。 in defence of 以防卫,为保护…,为…辩护。 put oneself in the state of defence 摆开防御姿势。 the D- of the Realm Act 〔英国〕国防条例〔略 DORA,1914年8月的法令,规定政府在战争期间有广泛的权力〕。 the science [art] of defence 护身术[拳术、剑术等]。
This thesis research on a kind of anti - defence technology named wary trajectory technology , which inherits from mobile changeable trajectory technology 本文研究一种由机动变轨技术演化而来的跳跃式弹道技术。
Today , that the anti - defence technologies are less advanced than the defence technologies is one of the most severe problems meeted by ballistic missile . so , to develop the anti - defence technologies is a important mean to improve the survival ability of ballistic missiles 目前,弹道导弹面临的主要问题之一是突防技术落后于反导技术,因此,突防技术的迅速突破是提高弹道导弹生存能力重要手段。
Aimmed to retard the response of ballistic missile defence system , the wavy trajectory with three crests is designed in this thesis to replace traditional parabola one . this kind of trajectory make anti - defence system have lots of difficulties to detect and compute the track and destination of ballistic missiles before reentry . so , applying the wavy trajectory can greatly improve the anti - defence ability of ballistic missiles 从延缓导弹防御系统的早期预警时间着手,将传统弹道导弹的抛物线弹道中段设计成有多个波峰的跳跃式弹道,使得探测系统在导弹再入大气层之前,很难准确探测和计算导弹的落点,使得防御系统防不胜防,从而大大地提高了弹道导弹的突防能力。