air defense by the use of deception or dispersion or protective construction
passive air defense 30秒了解
- (noun) air defense by the use of deception or dispersion or protective construction
Meanings
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1
noun air defense by the use of deception or dispersion or protective construction
Summary
air defense by the use of deception or dispersion or protective construction
- (noun) air defense by the use of deception or dispersion or protective construction
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