1、This new contract authorizes Boeing to start work on Sustainment Block 16.
這份新合同授權(quán)波音公司開始對第16保障區(qū)塊(SB16)的工作。

2、Reliability assessment, sustainment and improvement.
可靠性評估，維持并改善。

3、The sustainment of economy and system to urbanization of Hunan.
湖南城市化的經(jīng)濟支持與制度支持。

4、Raytheon's mission sustainment and support services is also an example of IDS 'OpenAIR?
雷聲的任務(wù)維護和服務(wù)支持也是IDS的OpenAIR ？