The Army has used PTDS to support U.S. and coalition forces in southwestern Asia since 2004.

自2004年以来，陆军一直使用PTDS以支持美国和亚洲西南部的联军。

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Thus, the PTDS method provides an alternative tool for synthesizing and assembling long genes with complex structures.

因而，PTDS方法提供了一个能够合成不同种类、具有复杂结构的长片段基因的可行的技术。

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Attached by a high-strength tether to a mobile mooring system, PTDS is equipped with multi-mission sensors that can address a variety of surveillance needs.

该系统由高强度系绳连接到移动系泊系统，PTDS配备了多任务传感器，能够满足各种监视的需求。

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It pointed to the annual figure for Protected Trust Deeds (PTDs) in Scotland - where personal assets are transfered to a trustee to sell to pay creditors.

BBC: 'Record number' of Scottish firms go bust