air defense countermeasure 防空对策
attack-defense countermeasure 攻防对抗
attack defense countermeasure 攻防对抗
Suggestion of defense countermeasure 防御对策建议
air defense electronic countermeasure 防空电子对抗
defense countermeasure
防御对策
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Comparing with land military countermeasure, the space has some natural features as follows: asymmetry in attack and defense, 'soft' destruction, concealment and rapidness of countermeasure.
与地面军事对抗行动相比，空间军事对抗具有以下特点：攻防的不对称性、进攻的软性化、对抗的隐蔽性和对抗的瞬时化。
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