The ancient joint defense compared with today's network function of Great Wall has become a dream in the memory.

远古的联防与现今的网落长城的功能已成记忆的梦。

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The contractual insurance of joint defense for public security not only adds new content to rural social provision, but also provides a new way for social security.

“契约式治安联防保险”不仅赋予了农村社会保障工作新内容，而且为社会治安拓展了思路。

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During this joint training, we have been learning specific techniques to help us brush up on our skills; it will also bring us a marked improvement for air defense capability.

在这次合同训练中，我们学到了那些能够提升我们技战术的方法；这也将为我们的空中防卫能力带来显著提高。

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Those rebels,driven from Uganda into neighboring Congo, are now facing a joint operation by Ugandan defense forces and troops from the Central African Republic.

VOA: standard.2009.08.27

Mr.Obama said he had spoken with Defense Secretary Robert Gates and with the Chairman of the military Joint Chiefs of Staff, Navy Admiral Michael Mullen.

VOA: standard.2009.11.05

In contrast, few lawyers specialize exclusively in defensive tactics like invalidation, reexamination and joint defense.

FORBES: Turn The Tables On Patent Trolls

In 1940, President Roosevelt and Canadian Prime Minister William Mackenzie King met in Ogdensburg, New York, where they agreed to set up a joint defense commission.

CNN: Saturday,

Washington and Tokyo are working on a joint missile-defense shield, and South Korea is considering the purchase of American SM-2 defensive missiles for its destroyers.

NPR: Bush Calls for Unity, Condemns North Korean Tests