Like many countries China deploys ground-based air-defenses to protect against sudden air attack.

和许多的其它国家一样中国部署了地基的防空系统来抵御来自空中的突击。

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This paper analyzes the weakness of ground (ship) to air missile systems with CW guidance system to attack low speed targets (such as helicopters) and static air targets (balloon targets).

分析了连续波制导体系的地(舰)空导弹武器系统难以攻击低速目标(武装直升机)和空中静目标(气球靶)的弱点，并从原理上进行了分析。

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This thesis also do a research on air-to-ground attack.

本文还对空对地攻击进行了研究。

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Now the emphasis has shifted from ground troops to the navy and air force, which would spearhead any attack on Taiwan.

ECONOMIST: China's military might

American and Italian soldiers were helping to build and run tent cities for the refugees, even as Apache attack helicopters, multiple rocket-launchers and sophisticated ground-to-air missiles were on their way for possible use against Yugoslavia.

ECONOMIST: The refugees: Still they flee | The