ground sea

基本解释

It has a control system which allows the forces to stay updated. The information flows to relevant forces including the ground, sea and air corps.
它包含一个控制系统，可在海陆空范围内传输信息，使部队保持数据更新。
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The U.S. Air Force's Advanced EHF system will provide global, highly secure, protected, survivable communications for warfighters operating on ground, sea and air platforms.
这种美国空军的先进EHF系统可以为海陆空作战的士兵们提供全球性的、高度安全的、有保护的、能力强的通信。
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Radar altimeters are used in aircraft to indicate height above the ground of sea.
雷达高度表用以指示飞机相对于地面或海平面的高度。
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U.S.Defense officials say the new plan would include interceptor missiles deployed on U.S.Navy ships in the North Sea and Mediterranean, in addition to ground-based weapons.
The Obama administration's plan will replace Bush's anti-missile plan with a re-designed sea- and ground-based system, which destroys short and mid-range missiles instead of intercontinental missiles.

China's space surveillance is being complemented by even more capable ground and sea systems.
CENTERFORSECURITYPOLICY: China's one world?
Obering went on to say that the U.S. would be investing in a "good experimental foundation" that would add to the country's existing sea and ground-based missile defenses.
CENTERFORSECURITYPOLICY: 2007: A Chinese space odyssey