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- Division Air Defense Study 师防空研究
- Assistant Division Air Defense Officer 师助理防空官
- Joint US-Canada Air Defense Study 美国-加拿大联合空中防御研究
- Long-Term Worldwide Air Defense Study 长期全球防空研究
- Tactical Mid-Range Air Defense Study 战术中程防空研究
- Division Air Defense Artillery 师防空炮兵
- Division Air Defense Gun System 师防空系统
- Division Air Defense 师防空
- The squadron was protected by a highly mobile anti-tank and air defense. 这个中队由高度机动的反坦克和防空部队保卫。
- Long Term Air Defense Study 长期防空研究
- The cabinet had panicked, and had convened a committee to study the problem of air defense. 内阁会议一片恐慌，决定设置一个委员会来研究空防。
- The Air Defense Law of the PRC went into force on January 1,1997. 《中华人民共和国防空法》于1997年1月1日施行。
- Civil Air Defense Equipment Installation Engineering Co. 人防设备安装工程公司。
- The Air Defense Law of the PRC went into force on January 1, 1997. 《中华人民共和国防空法》于1997年1月1日施行。
- Air Defense Command Mass driver hit by cruise missile! 太空发射轨被巡航导弹击中！
- These air defense works were inherited from the war years. 这些人防工程都是战争年代遗留下来的。
- The squadron is protected by a highly mobile anti-tank and air defense. 这个中队由高度机动的反坦克和防空部队保卫。
- However, such use may not impair their functions as air defense works. 平时利用人民防空工程，不得影响其防空效能。
- The squadron is protected by a highly mobile anti - tank and air defense. 这个中队由高度机动的反坦克和防空部队保卫。
- People favor technique and approaches of curriculum development. As to whether objective and standard is reasonable, they seldom prove it, so ignoring comparison and defense study concerning curriculum development value. 人们热衷的是课程开发的技术和方法，以及课程目标和课程评价标准的分解、细化和操作，至于目标和标准本身是否合理，则很少予以论证，从而使得有关课程开发的价值比较和辩护的研究备受冷落。
